John Thune Republican The 2026 United States Senate elections are scheduled to be held on November 3, 2026, with 33 of the 100 seats in the Senate being contested in regular elections. In these elections, voters will elect candidates to six-year terms that begin on January 3, 2027, and expire on January 3, 2033. Senators are divided into three classes whose terms are staggered, so that a different class is elected every two years. Class 2 senators were last elected in 2020 and are up for election in 2026. With the election of John Thune as leader of the Republican Conference , this will be the first election year since 2006 in which Senate Republicans are not led by Mitch McConnell . The Senate Democratic Conference has been led by Chuck Schumer since 2017. Special elections have been scheduled in Ohio and Florida , following the resignation of JD Vance to become vice president and Marco Rubio 's resignation to become United States secretary of state . Two incumbent senators— Bill Cassidy of Louisiana and John Cornyn of Texas —lost renomination in their respective primaries. The last incumbent senator to lose renomination was Richard Lugar in 2012 , [ e ] and the last time multiple elected incumbent senators lost renomination in primaries was in 2010 . [ f ] The last incumbent senator to place no better than third in a primary before Cassidy was Hattie Caraway in 1944 . [ 1 ] [ g ] Two nominees— Graham Platner and Lindsey Graham —are being replaced, respectively by a convention and a special primary, as their party's nominee in Maine and South Carolina . The last nominee to be replaced by a convention or special primary was John Walsh in 2014 . [ h ] The last time multiple nominees were replaced was in 2002 , with Robert Torricelli of New Jersey and Paul Wellstone of Minnesota . Partisan composition All 33 Class 2 Senate seats and two Class 3 seats are up for election in 2026. Class 2 currently consists of 20 Republicans and 13 Democrats. [ 2 ] Democrats are defending two seats in states won by Donald Trump in 2024 , in both cases by less than 3 percentage points: Michigan , where incumbent Gary Peters is not running for reelection; and Georgia, where the incumbent is Jon Ossoff . Michigan elected Democrat Elissa Slotkin to the Senate in 2024 by 0.3 percentage points. Georgia did not have a Senate election in 2024, although in the most recent Senate election, in 2022 , Democrat Raphael Warnock won by three points in a runoff. [ 3 ] [ 4 ] Five incumbent Democratic senators represent states won by Kamala Harris by single-digit margins in 2024: New Hampshire's Jeanne Shaheen , Minnesota's Tina Smith , Virginia's Mark Warner , New Jersey's Cory Booker , and New Mexico's Ben Ray Luján . [ 3 ] Shaheen and Smith are not running for reelection. [ 5 ] Susan Collins 's seat in Maine is the only seat being defended by a Republican in a state that Kamala Harris won in 2024 . [ 6 ] Republican Thom Tillis of North Carolina is retiring [ 7 ] from the Senate in a state that Trump won by a single-digit margin in 2024 . [ 3 ] The 2026 Senate map is considered favorable to Republicans, even though Democrats are defending 13 seats and Republicans 22. Most rating groups identify two Republican-held seats as highly competitive and three or four others as somewhat competitive. By contrast, Democrats must flip at least four seats to win a majority while defending two highly vulnerable seats and two others viewed as somewhat vulnerable. [ 8 ] [ 9 ] [ 10 ] Pollsters have found Democrats' chances to flip the Senate to be improving due to nominees in states such as North Carolina , Ohio , and Alaska running highly competitive campaigns. [ 11 ] But Democrats' odds of flipping the Senate may have diminished after controversy over their nominees in Maine and Michigan. [ 12 ] Change in composition Each block represents one of the one hundred seats in the U.S. Senate. "D#" is a Democratic senator, "I#" is an Independent senator, and "R#" is a Republican senator. They are arranged so that the parties are separated and a majority is clear by crossing the middle. Before the elections Each block indicates an incumbent senator's actions going into the election. After the elections Gains and holds As of July 2026, eleven senators—four Democrats and seven Republicans—have announced they will not seek reelection. This is the most in a single election cycle since 1996 , when thirteen senators chose not to run again. [ i ] [ 14 ] Two Republicans sought reelection but lost in the primary election. Multiple sites and political pundits have published predictions of competitive seats. These predictions have considered factors such as the strength of the incumbent (if the incumbent was running for reelection) and the other candidates, and the state's partisan lean, reflected in part by the state's Cook Partisan Voting Index rating. The predictions typically assign ratings to each seat, indicating the predicted advantage that a party had in winning that seat. Most election predictors use: " tossup ": no advantage " tilt " (used by some predictors): advantage that is not quite as strong as "lean" " lean ": slight advantage " likely ": significant, but surmountable, advantage " safe " or " solid ": near-certain chance of victory Opinion polling Potentially competitive seats These are seats that polling and predictions currently have listed as at least somewhat close. Republican incumbents One Republican -held senate seat, North Carolina , is considered competitive but favoring the Democrats. [ 47 ] Former Governor Roy Cooper overwhelmingly won the Democratic nomination for the open seat. [ 48 ] Incumbent Republican senator Thom Tillis is retiring, [ 23 ] with former Republican National Committee Chairman Michael Whatley becoming the Republican nominee, endorsed by Donald Trump . [ 49 ] Five Republican-held Senate races are expected to be highly competitive: Maine , Ohio , Alaska , Texas , and Iowa . Incumbent Susan Collins is seeking reelection in Maine; [ 50 ] it is regarded as competitive due to the state's blue lean , but Collins previously kept her seat during cycles favorable to Democrats nationally ( 2008 and 2020 ). Military veteran Graham Platner was the Democratic nominee in Maine until he withdrew from the race due to allegations of sexual assault. He was replaced by former Maine Senate president Troy Jackson . [ 51 ] [ 52 ] Incumbents in Ohio ( Jon Husted ) and Alaska ( Dan Sullivan ) are expected to have competitive races against former U.S. senator Sherrod Brown and former U.S. representative Mary Peltola , respectively. [ 50 ] Both Brown and Peltola lost reelection in 2024. In Texas, incumbent Senator John Cornyn lost the Texas Senate Republican primary election to Texas Attorney General Ken Paxton , who is expected to have a competitive race against State Representative James Talarico . In Iowa, the incumbent Joni Ernst is not seeking reelection; [ 17 ] the race to succeed Ernst between Republican U.S. representative Ashley Hinson and Democratic state representative Josh Turek is expected to be competitive. Six other Republican-held Senate races are expected to favor Republicans but are viewed as somewhat competitive by some predictors: Nebraska , Kansas , Florida , Montana , South Carolina , and Louisiana . In Nebraska, incumbent Senator Pete Ricketts is challenged by independent Dan Osborn , who ran against Republican Deb Fischer in the Class I race in 2024. Osborn was the most successful challenger of a Republican-held seat during the 2024 election cycle , losing by only six points, compared to Kamala Harris 's loss by 20 points in Nebraska in the concurrent presidential election . In August 2025, the Nebraska Democratic Party endorsed Osborn. [ 53 ] Louisiana is expected to heavily favor Republicans; incumbent Senator Bill Cassidy was challenged by Louisiana State Treasurer John Fleming and U.S. representative Julia Letlow , with Letlow winning the primary election, marking the first time an elected incumbent senator had lost their primary in any state since 2012 in Indiana . [ e ] Democratic incumbents The Democratic -held Senate race expected to be the most competitive is in Michigan , where senator Gary Peters has announced his retirement. The state has an even PVI score. [ 54 ] [ 50 ] Former US Representative for the 8th congressional district and 2024 U.S. Senate nominee Mike Rogers [ 55 ] is the Republican nominee. Former Wayne County Health, Human, and Veterans Services Department Director Abdul El-Sayed [ 56 ] is the Democratic nominee. In Georgia , incumbent Democratic senator Jon Ossoff is running against Republican Mike Collins , the U.S. representative from Georgia's 10th congressional district . [ 57 ] It was initially expected to be a very competitive race, [ 50 ] but election predictors have become increasingly confident of Ossoff's prospects. [ 58 ] The seats in Minnesota (vacated by Tina Smith ), and New Hampshire (vacated by Jeanne Shaheen ) are also expected to be only marginally close races. In New Hampshire, popular former Republican governor Chris Sununu declined to run; [ 31 ] [ 59 ] his brother, former Senator John E. Sununu , announced a run for the Senate seat he lost to Shaheen in 2008 . [ 60 ] Some polls have showed John E. Sununu in a dead heat with Chris Pappas , the Democratic front-runner. [ 61 ] [ 62 ] Former U.S. Senator from Massachusetts and U.S. Ambassador to New Zealand and Samoa Scott Brown has announced his candidacy. Brown was the Republican nominee in 2014 , narrowly losing the general election to Shaheen. [ 63 ] Special elections during the preceding Congress Special U.S. Senate elections in Florida and Ohio are scheduled for November 3, 2026. Florida voters will elect a candidate to serve the remaining two years of former Senator Marco Rubio 's unexpired term; [ 66 ] Rubio resigned his seat in 2025 to become United States Secretary of State . [ 67 ] Ohio voters will elect a candidate to serve the remaining two years of former Senator JD Vance 's unexpired term; Vance resigned in 2025 to become Vice President of the United States . [ 68 ] Elections are sorted by date then state. ▌ Neil Gillespie (Independent) [ 69 ] ▌ Ashley Moody (Republican) [ 69 ] ▌ Angie Nixon (Democratic) [ 69 ] ▌ Sherrod Brown (Democratic) [ 70 ] ▌ Jon Husted (Republican) [ 70 ] ▌ Greg Levy (Independent) [ 71 ] ▌ William Redpath (Libertarian) [ 70 ] Elections leading to the next Congress In these general elections, the winners will be elected for the term beginning January 3, 2027. ▌ Barry Moore (Republican) [ 72 ] ▌ Everett Wess (Democratic) [ 73 ] ▌ Gerald Heikes (Republican) [ 74 ] ▌ David Leslie (Democratic) [ 74 ] ▌ Mary Peltola (Democratic) [ 74 ] ▌ Dan J. Sullivan (Republican) [ 75 ] ▌ Dan S. Sullivan (Republican) [ 74 ] ▌ Tom Cotton (Republican) [ 76 ] ▌ Hallie Shoffner (Democratic) [ 76 ] ▌ Jeff Wadlin (Libertarian) [ 77 ] ▌ Mark Baisley (Republican) [ 78 ] ▌ John Hickenlooper (Democratic) [ 78 ] ▌ Jeff Appelhans (Democratic) [ 79 ] ▌ Chris Coons (Democratic) [ 79 ] ▌ E. No-Trump Hansen (Democratic) [ 79 ] ▌ Michael Katz (Republican) [ 79 ] ▌ Mary Louve (Democratic) [ 79 ] ▌ John Shulli (Republican) [ 79 ] ▌ Mike Collins (Republican) [ 80 ] ▌ Jon Ossoff (Democratic) [ 80 ] ▌ Todd Achilles (Independent) [ 81 ] ▌ Natalie Fleming (Independent) [ 81 ] ▌ Matt Loesby (Libertarian) [ 81 ] ▌ Jim Risch (Republican) [ 81 ] ▌ Juliana Stratton (Democratic) [ 82 ] ▌ Don Tracy (Republican) [ 82 ] ▌ Ashley Hinson (Republican) [ 83 ] ▌ Thomas Laehn (Libertarian) [ 84 ] ▌ Josh Turek (Democratic) [ 83 ] ▌ Adam Hamilton (Democratic) [ 85 ] ▌ Roger Marshall (Republican) [ 85 ] ▌ Andy Barr (Republican) [ 86 ] ▌ Charles Booker (Democratic) [ 86 ] ▌ Jamie Davis (Democratic) [ 87 ] ▌ Julia Letlow (Republican) [ 87 ] ▌ Susan Collins (Republican) [ 88 ] ▌ Troy Jackson (Democratic) [ 89 ] ▌ John Deaton (Republican) [ 90 ] ▌ Ed Markey (Democratic) [ 91 ] ▌ Seth Moulton (Democratic) [ 92 ] ▌ Lydia Christensen (Libertarian) [ 93 ] ▌ Abdul El-Sayed (Democratic) [ 94 ] ▌ Tim Long (U.S. Taxpayers) [ 93 ] ▌ Douglas P. Marsh (Green) [ 93 ] ▌ Mike Rogers (Republican) [ 94 ] ▌ Peggy Flanagan (DFL) [ 95 ] ▌ Michele Tafoya (Republican) [ 95 ] ▌ Scott Colom (Democratic) [ 96 ] ▌ Cindy Hyde-Smith (Republican) [ 96 ] ▌ Ty Pinkins (Independent) [ 96 ] ▌ Kurt Alme (Republican) [ 97 ] ▌ Kyle Austin (Libertarian) [ 97 ] ▌ Alani Bankhead (Democratic) [ 97 ] ▌ Seth Bodnar (Independent) [ 97 ] ▌ Mike Marvin (Legal Marijuana Now) [ 98 ] ▌ Dan Osborn (Independent) [ 99 ] ▌ Pete Ricketts (Republican) [ 98 ] ▌ Scott Brown (Republican) [ 63 ] ▌ Karishma Manzur (Democratic) [ 100 ] ▌ Chris Pappas (Democratic) [ 101 ] ▌ Jared Sullivan (Democratic) [ 102 ] ▌ John E. Sununu (Republican) [ 60 ] ▌ Cory Booker (Democratic) [ 103 ] ▌ Justin Murphy (Republican) [ 103 ] ▌ Ben Ray Luján (Democratic) [ 104 ] ▌ Larry Marker (Republican) [ 105 ] ▌ Shannon Bray (Libertarian) [ 106 ] ▌ Roy Cooper (Democratic) [ 106 ] ▌ Michael Whatley (Republican) [ 106 ] ▌ Kevin Hern (Republican) [ 107 ] ▌ Ron Meinhardt (Independent) [ 107 ] ▌ Jim Priest (Democratic) [ 107 ] ▌ Curtis Stinnett (Independent) [ 107 ] ▌ N'Kiyla Thomas (Democratic) [ 107 ] ▌ Sevier White (Libertarian) [ 107 ] ▌ Jeff Merkley (Democratic) [ 108 ] ▌ David Brock Smith (Republican) [ 108 ] ▌ Michael Bahry (Independent) [ 109 ] ▌ Connor Burbridge (Democratic) [ 109 ] ▌ Raymond McKay (Republican) [ 109 ] ▌ Luis Munoz (Democratic) [ 109 ] ▌ Jack Reed (Democratic) [ 109 ] ▌ Annie Andrews (Democratic) [ 110 ] ▌ Darline Graham (Republican) [ 111 ] ▌ Mark Hackett (Constitution) [ 110 ] ▌ Ralph Norman (Republican) [ 111 ] ▌ Kasie Whitener (Libertarian) [ 110 ] ▌ Catherine Fleming Bruce (Democratic, write-in ) [ 112 ] ▌ Brian Bengs (Independent) [ 113 ] ▌ Mike Rounds (Republican) [ 114 ] ▌ Marquita Bradshaw (Democratic) [ 115 ] ▌ Tharon Chandler (Independent) [ 115 ] ▌ Andrew Gerena (Independent) [ 115 ] ▌ Bill Hagerty (Republican) [ 115 ] ▌ Jeremy Hearn (Independent) [ 115 ] ▌ Robert Jones (Independent) [ 115 ] ▌ James Macon III (Independent) [ 115 ] ▌ Yoshi Matthews (Independent) [ 115 ] ▌ David Sutman Jr. (Independent) [ 115 ] ▌ Catherine Whitson (Independent) [ 115 ] ▌ Ted Brown (Libertarian) [ 116 ] ▌ Ken Paxton (Republican) [ 116 ] ▌ James Talarico (Democratic) [ 116 ] ▌ Bert Mizusawa (Republican) [ 117 ] ▌ Mark Moran (Independent) [ 118 ] ▌ Mark Warner (Democratic) [ 119 ] ▌ Rachel Fetty Anderson (Democratic) [ 120 ] ▌ Shelley Moore Capito (Republican) [ 120 ] ▌ Rio Phillips (Write-in) [ 120 ] ▌ S. Marshall Wilson (Constitution) [ 120 ] ▌ James W. Byrd (Democratic) [ 121 ] ▌ Harriet Hageman (Republican) [ 121 ] Tommy Tuberville Republican One-term Republican Tommy Tuberville previously said he planned to seek reelection, [ 122 ] but announced on May 27, 2025, that he would instead run for governor of Alabama in 2026 . [ 15 ] He was elected to the U.S. Senate in 2020 with 60.1% of the vote. The Republican primary took place on May 19. The candidates included former Navy SEAL Jared Hudson, [ 123 ] state Attorney General Steve Marshall , [ 124 ] and U.S. Representative Barry Moore . [ 125 ] No candidate won a majority of the vote, so the top two vote-getters, Hudson and Moore, advanced to a June 16 runoff, which Moore won with 56% of the vote. [ 126 ] No candidate won a majority in the May 19 Democratic primary, so small business owner Dakarai Larriett [ 127 ] and attorney Everett Wess [ 128 ] advanced to a June 16 runoff, which Wess won. [ 126 ] Dan Sullivan Republican Two-term Republican Dan Sullivan was reelected in 2020 with 53.9% of the vote. He is running for reelection to a third term. [ 129 ] A nonpartisan primary election was held on August 18, 2026, from which the top four candidates advanced to the general election, which will be conducted with ranked-choice voting . Sullivan was joined in the primary by Republicans Dustin Darden, Gerald Heikes, Fred Grauberger, and Richard Benedict Mayers, all of whom are perennial candidates . [ 130 ] Despite attempts to disqualify him, former U.S. Forest Service employee Dan J. Sullivan is running as a Republican. Some Republicans said his candidacy could confuse people who intend to vote for incumbent senator Dan Sullivan. [ 131 ] Former Democratic U.S. Representative Mary Peltola announced her candidacy for the Senate in January 2026 [ 132 ] after initially filing paperwork to run for her former House seat . [ 133 ] Other Democrats seeking election include former flight attendant Carol Hafner and LGBTQ+ activist David Leslie. [ 130 ] Several third-party and independent candidates also ran, including Scott Kohlhaas of the Libertarian Party, Richard Grayson of the Green Party, Earl D. "Skip" Southworth of the Alaskan Party, and independents Sid Hill, Shirley Saucerman, and Robert Reece. [ 130 ] Tom Cotton Republican Two-term Republican Tom Cotton was reelected in 2020 with 66.5% of the vote. Cotton is running for reelection, [ 134 ] having secured the Republican nomination on March 3, 2026. Rice farmer Hallie Shoffner secured the Democratic nomination on the same day. [ 135 ] John Hickenlooper Democratic One-term Democrat John Hickenlooper , elected with 53.5% of the vote in 2020 , is running for reelection for a second term, and has said it will be his last term. [ 136 ] [ 137 ] Hickenlooper defeated progressive state Senator Julie Gonzales in the Democratic primary, 53% to 47%. [ 138 ] [ 139 ] State Senator Mark Baisley is the Republican nominee following the Colorado Republican Assembly on April 11, as no other candidates surpassed the 30% threshold. [ 140 ] [ 141 ] Two-term Democrat Chris Coons was reelected in 2020 with 59.4% of the vote and is running for reelection. [ 142 ] Coons is being challenged in the Democratic primary by philosopher and educator Jeff Applehans; E. No-Trump Hansen; and domestic violence advocate Mary Louve. [ 142 ] Former Democratic state Senator and Independent Party of Delaware nominee for U.S. Senate in 2024 Michael Katz and U.S. Army War College instructor John Shulli are running in the Republican primary. [ 142 ] Florida (special) Ashley Moody Republican Three-term Republican Marco Rubio was reelected in 2022 with 57.68% of the vote. He resigned on January 20, 2025, following his confirmation as U.S. Secretary of State . Governor Ron DeSantis announced he would appoint Florida Attorney General Ashley Moody as interim senator until a 2026 special election , [ 143 ] and Moody has since declared her candidacy to serve the remainder of Rubio's term. [ 144 ] State Representative Angie Nixon [ 145 ] and Alexander Vindman , former director for European affairs at the U.S. National Security Council , a whistleblower in the 2019 Trump–Ukraine scandal , and the twin brother of Virginia U.S. Representative Eugene Vindman , ran for the Democratic nomination. [ 146 ] [ 147 ] Nixon won the August 18 primary in a major upset. Jon Ossoff Democratic One-term Democrat Jon Ossoff is running for a second term. [ 148 ] He was narrowly elected in a 2021 runoff with 50.6% of the vote. As the only person to submit the necessary number of signatures to appear on the primary ballot, Ossoff is the Democratic nominee. [ 149 ] The Republican primary took place on May 19. U.S. Representative Mike Collins [ 150 ] and former University of Tennessee football coach Derek Dooley [ 151 ] advanced to a June 16 runoff, which Collins won with 56% of the vote. [ 152 ] Jim Risch Republican Three-term Republican Jim Risch was reelected in 2020 with 62.6% of the vote and is running for a fourth term. [ 153 ] He won the Republican nomination on May 19, defeating data engineer and 2020 Libertarian nominee for Idaho's 1st congressional district Joe Evans, entrepreneur Denny LaVe, and engineer Josh Roy. [ 154 ] David Roth, a realtor and the 2022 U.S. Senate nominee, [ 155 ] defeated Nickolas Bonds and Brad Moore [ 154 ] in the Democratic primary on May 19, [ 156 ] but ended his campaign on July 28. [ 157 ] Matt Loesby, the nominee for Idaho's 1st congressional district in 2024 , [ 158 ] is running as a Libertarian. Former Democratic state representative Todd Achilles [ 159 ] and software developer Natalie Fleming [ 154 ] are running as independents . Dick Durbin Democratic Five-term Democrat and Senate Democratic Whip Dick Durbin was reelected in 2020 with 54.9% of the vote. On April 23, 2025, he announced he would not run for reelection. [ 160 ] On March 17, 2026, incumbent Lieutenant Governor Juliana Stratton won the Democratic primary, defeating a crowded field, including U.S. Representatives Raja Krishnamoorthi and Robin Kelly . [ 161 ] Former Illinois Republican Party Chairman Don Tracy easily won the Republican primary the same day, defeating attorney Jeannie Evans and Polish American Congress PAC national director Casey Chlebek. [ 161 ] Joni Ernst Republican Two-term Republican Joni Ernst was reelected in 2020 with 51.7% of the vote. [ 162 ] On September 2, 2025, she announced that she would not seek reelection to a third term, after being criticized for comments about reductions in Medicaid. [ 163 ] U.S. Representative Ashley Hinson easily defeated former state Senator Jim Carlin in the June 2, 2026 Republican primary to succeed Ernst. [ 164 ] In the Democratic primary, state Representative Josh Turek defeated state Senator Zach Wahls by a comfortable margin. [ 165 ] Both Democratic candidates cited Ernst's remarks about Medicare as a factor in their decisions to run. [ citation needed ] Roger Marshall Republican One-term Republican Roger Marshall was elected in 2020 with 53.2% of the vote and is running for reelection. [ 166 ] Pastor Adam Hamilton , [ 167 ] who initially considered running as an independent, [ 168 ] won the Democratic nomination in a crowded field that included former state USDA Director Christy Davis, [ 169 ] former federal prosecutor Jason Hart, [ 170 ] commercial real estate developer Erik Murray, [ 171 ] attorney Anne Parelkar, [ 172 ] state senator Patrick Schmidt , [ 173 ] art gallery owner Mike Soetaertare, [ 172 ] former financial services executive Sandy Spidel Neumann, [ 174 ] and counterintelligence specialist Noah Tyler. [ 175 ] Mitch McConnell Republican Seven-term Republican and former Senate Republican Leader Mitch McConnell was reelected in 2020 with 57.8% of the vote. McConnell retired as leader after the 2024 elections with plans to serve out the remainder of his term. [ 176 ] On February 20, 2025, McConnell announced he would not seek reelection. [ 18 ] On May 19, U.S. Representative Andy Barr of Kentucky's 6th congressional district [ 177 ] defeated a crowded field that included former Kentucky Attorney General and 2023 Republican gubernatorial nominee Daniel Cameron [ 178 ] for the Republican nomination. [ 179 ] Also on May 19, former state Representative Charles Booker , the 2022 Senate nominee and a former staffer for Governor Andy Beshear , won the Democratic primary, [ 180 ] in a crowded field that included the 2020 nominee and Marine fighter pilot Amy McGrath . [ 180 ] [ 179 ] Bill Cassidy Republican Two-term Republican Bill Cassidy was reelected in 2020 with 59.3% of the vote in the first round of the " Louisiana primary ", and ran for reelection to a third term, but placed a distant third in the jungle primary. [ 181 ] The "Louisiana primary" has since been eliminated, and this election used partisan primaries. [ 182 ] Party primaries were closed to members of other parties, though voters unaffiliated with a party could vote in either. [ 182 ] U.S. Representative Julia Letlow and state Treasurer and former U.S. representative John Fleming advanced to the Republican runoff, defeating Cassidy in the primary. [ 183 ] [ 184 ] President Donald Trump endorsed Letlow, who defeated Fleming in a runoff. [ 185 ] In the Democratic primary runoff, sorghum farmer Jamie Davis defeated data scientist and political consultant Gary Crockett. [ 186 ] Nonprofit executive Nick Albares placed third in the jungle primary. [ 187 ] Susan Collins Republican Incumbent Republican Senator Susan Collins was reelected with 51% of the vote to 42% for her Democratic opponent in 2020 . She formally announced her reelection campaign in February 2026. [ 188 ] As the only person to submit the necessary number of signatures to appear on the primary ballot, Collins is the Republican nominee. [ 189 ] Throughout 2025, Governor Janet Mills was seen as a potential Democratic challenger to Collins. She announced her Senate candidacy in October [ 190 ] and pledged to serve only one term if elected. [ 191 ] She suspended her campaign on April 30, 2026, due to a lack of financial resources and poor polling numbers. [ 192 ] On June 9, Sullivan harbor master and Marine veteran Graham Platner [ 193 ] defeated former deputy secretary of the Maryland Department of the Environment David Costello [ 194 ] for the Democratic nomination with 72% of the vote. [ 195 ] On July 8, Platner withdrew from the race following allegations of sexual assault. The same day, Maine Democrats voted to hold a state convention to nominate a candidate to replace Platner as their nominee. [ 196 ] To qualify for the convention, replacement candidates must collect at least 500 signatures, with at least 50 signatures from eight different counties. [ 197 ] In the course of the county meetings, about 456 of the selected delegates supported Troy Jackson , putting him in the lead for the nomination. [ 198 ] [ 199 ] [ 200 ] Jackson won the convention vote over Saundra Pelletier , 566–5. [ 201 ] Two-term Democrat Ed Markey was reelected in 2020 with 66.2% of the vote, and is running for reelection to a third full term. [ 91 ] [ 202 ] The longest-serving Democrat in Congress , he will be 80 on Election Day . During the 2020 Democratic primary , Markey faced multiple calls to retire due to his age. [ 203 ] [ 204 ] He is being challenged in the Democratic primary by U.S. Representative Seth Moulton . [ 92 ] 2024 U.S. Senate nominee John Deaton is the presumptive Republican nominee. [ 90 ] Gary Peters Democratic Two-term Democrat Gary Peters was narrowly reelected in 2020 with 49.9% of the vote. On January 28, 2025, he announced that he would not seek reelection. [ 19 ] Former Wayne County Health, Human, and Veterans Services Department Director Abdul El-Sayed [ 56 ] and U.S. Representative Haley Stevens of the 11th congressional district [ 205 ] ran in the Democratic primary. El-Sayed narrowly defeated Stevens and is the Democratic nominee. As the only person to submit the necessary number of signatures to appear on the primary ballot, former U.S. Representative for the 8th congressional district and 2024 U.S. Senate nominee Mike Rogers [ 55 ] is the Republican nominee. Tina Smith Democratic (DFL) One-term Democrat Tina Smith was reelected in 2020 with 48.7% of the vote after being appointed by Governor Mark Dayton in 2018 following Al Franken 's resignation and then winning a special election that year. On February 13, 2025, she announced she would not seek a second full term in 2026. [ 20 ] Incumbent Lieutenant Governor Peggy Flanagan announced her candidacy the same day. [ 206 ] U.S. Representative Angie Craig announced her candidacy on April 29. [ 207 ] Flanagan won the nomination with 59% of the vote. Republicans running included sportscaster Michele Tafoya , [ 208 ] 2024 Republican U.S. Senate nominee and former professional basketball player Royce White , [ 209 ] retired U.S. Navy officer Tom Weiler, [ 210 ] and former Navy SEAL Adam Schwarze. [ 211 ] Tafoya ultimately won the nomination with 52% of the vote. Cindy Hyde-Smith Republican One-term Republican Cindy Hyde-Smith was reelected in 2020 with 54.1% of the vote after being appointed in 2018 and winning a special election later that year. She is running for a second full term in office. [ 212 ] She defeated physician Sarah Adlakha in the Republican primary on March 10, 2026. [ 213 ] Lowndes County District Attorney Scott Colom defeated U.S. Marine Corps veteran Albert Littell, and Priscilla Williams-Till, a cousin of Emmett Till , in the Democratic primary on March 10, 2026. [ 214 ] [ 215 ] [ 216 ] Ty Pinkins, the Democratic nominee for Secretary of State in 2023 and for U.S. Senate in 2024 , is running as an independent. [ 217 ] Steve Daines Republican Two-term Republican Steve Daines was reelected in 2020 with 55% of the vote. On March 4, 2026, Daines announced he would not seek reelection. The same day, U.S. Attorney Kurt Alme announced his candidacy and immediately won Daines's endorsement. [ 218 ] Former state Representative Reilly Neill ran for the Democratic nomination, [ 219 ] but was defeated in the Democratic primary by former U.S. Air Force Lieutenant Colonel Alani Bankhead in a major upset . [ 220 ] Seth Bodnar , the president of the University of Montana until January 2026, is running as an independent candidate. [ 221 ] Former U.S. Senator Jon Tester endorsed Bodnar, surprising many and angering many Democrats. [ 222 ] Pete Ricketts Republican Two-term Republican Ben Sasse resigned early in the 118th Congress to become president of the University of Florida . [ 223 ] On January 12, 2023, Governor Jim Pillen appointed former governor Pete Ricketts as senator. [ 224 ] Ricketts won the 2024 special election to complete Sasse's term, defeating college professor Preston Love Jr. , [ 225 ] and is now running for reelection to his first full term. [ 226 ] Former labor union leader Dan Osborn , who challenged Republican Deb Fischer for Nebraska's Class I Senate seat , has announced an independent bid. [ 99 ] The Nebraska Democratic Party has declined to recruit a Democratic challenger to Ricketts, [ 227 ] and the party's chair has endorsed Osborn. [ 228 ] Other candidates filed for the Democratic primary, raising concern that their campaigns could split the vote and weaken Osborn's support in the general election, [ 229 ] but retired pharmacy technician Cindy Burbank won the Democratic primary and said she intended to withdraw from the general election if she sees no clear path to victory. [ 230 ] She officially withdrew from the race on July 17. [ 231 ] Three-term Democrat Jeanne Shaheen was reelected in 2020 with 56.6% of the vote. On March 12, 2025, Shaheen announced that she would not seek reelection to a fourth term. [ 22 ] Those running for the Democratic nomination include U.S. Representative Chris Pappas [ 101 ] and New Hampshire Democratic Party rules committee member Karishma Manzur. [ 100 ] On June 25, former U.S. Senator from Massachusetts and former U.S. Ambassador to New Zealand and Samoa Scott Brown entered the race; he won the 2014 Republican Senate primary but lost the general election to Shaheen. [ 63 ] Former U.S. Senator John E. Sununu , who lost his seat to Shaheen in 2008 , is also running. [ 60 ] His brother, former Governor Chris Sununu , declined to run. [ 232 ] Cory Booker Democratic Two-term Democrat Cory Booker was reelected in 2020 with 57.2% of the vote and is running for reelection to a third full term. [ 233 ] As the only person to submit the necessary number of signatures to appear on the primary ballot, Booker is the Democratic nominee. [ 234 ] On June 2, 2026, former Tabernacle Mayor Justin Murphy, a Navy veteran and attorney, won the Republican nomination [ 235 ] with 33% of the vote, defeating physician Robert Lebovics, U.S. Army combat veteran Richard Tabor, and former News 12 reporter Alex Zdan. [ 236 ] Ben Ray Luján Democratic One-term Democrat Ben Ray Luján was elected in 2020 with 51.7% of the vote. On April 23, 2025, Luján announced that he would seek a second term. [ 237 ] Christopher Heuvel, the only Republican who filed, was disqualified from the race for failing to meet the requirements to make the ballot. [ 238 ] Former oil and gas operator Larry Marker collected the signatures needed to qualify for the nomination as a write-in . [ 239 ] Thom Tillis Republican Two-term Republican Thom Tillis , who was narrowly reelected in 2020 with 48.7% of the vote, announced on June 29, 2025, that he would not seek a third term after facing backlash for voting against One Big Beautiful Bill Act , prompting Donald Trump to call for a primary challenger. [ 23 ] After Tillis withdrew, Trump endorsed former Republican National Committee chair Michael Whatley , [ 240 ] who won the Republican nomination, defeating Don Brown in the March 3 primary. [ 241 ] Lara Trump , former co-chair of the Republican National Committee and Wilmington native, was considered a potential candidate to challenge Tillis, but announced she would not run. [ 242 ] On the Democratic side, former U.S. Representative Wiley Nickel declared his candidacy in April 2025. [ 243 ] Former Governor Roy Cooper announced his candidacy on July 28, 2025. [ 48 ] The next day, Nickel dropped out and endorsed Cooper. [ 244 ] Cooper easily won the nomination. [ 47 ] Jon Husted Republican One-term Republican JD Vance was elected in 2022 with 53% of the vote. [ 245 ] On January 10, 2025, he resigned from the Senate after being elected Vice President of the United States in 2024 . On January 17, Governor Mike DeWine announced that then- Lieutenant Governor Jon Husted would replace Vance in the Senate. [ 246 ] Husted is running to serve the remainder of Vance's term. [ 247 ] Former U.S. Senator Sherrod Brown , who was unseated in 2024 , [ 248 ] defeated IT professional Ron Kincaid in the Democratic primary on May 5, 2026. [ 249 ] Former Libertarian National Committee chair William Redpath is running as a Libertarian. [ 250 ] Ohio Libertarians disqualified healthcare consultant Jeffrey Kanter from the Libertarian primary after he submitted hundreds of invalid signatures with his candidate petition. [ 251 ] Incumbent Republican Markwayne Mullin won a special election in 2022 with 61.8% of the vote to complete the remainder of the term vacated by Jim Inhofe , who resigned on January 3, 2023, due to declining health and died in 2024. [ 252 ] Mullin initially announced plans to seek his first full term in office, but on March 5, 2026, President Trump announced his nomination of Mullin for Secretary of Homeland Security ; the Senate confirmed Mullin on March 23. [ 253 ] Governor Kevin Stitt appointed board member and former CEO of Williams Companies Alan Armstrong to replace Mullin in the Senate. [ 254 ] Armstrong was sworn in on March 24 [ 255 ] and was required to sign an oath stating that he would not run in the 2026 election. [ 256 ] [ 13 ] U.S. Representative for Oklahoma's 1st congressional district Kevin Hern [ 257 ] won the June 16 Republican primary with 70% of the vote in a crowded field. [ 258 ] In the June 16 Democratic primary, lawyer Jim Priest [ 259 ] and nurse N'Kiyla "Jasmine" Thomas [ 260 ] received the most votes and advanced to a runoff on August 25. [ 261 ] Entering Wedge Media executive director Ron Meinhardt and pharmacist Curtis Stinnett are running as independents. [ 258 ] [ 262 ] Sevier White, candidate for Oklahoma's 4th congressional district in 2016 , is running as a Libertarian . [ 258 ] Jeff Merkley Democratic Three-term Democrat Jeff Merkley was reelected in 2020 with 56.9% of the vote. On July 20, 2025, he announced his candidacy for reelection. [ 263 ] He defeated retired electrical engineer Paul D. Wells [ 264 ] in the Democratic primary on May 19, 2026. [ 265 ] State Senator David Brock Smith , [ 266 ] won the Republican primary that was held on May 19, 2026, defeating a crowded field of candidates, with former Linn County Republican Party chair Jo Rae Perkins [ 264 ] coming in second. [ 267 ] Five-term Democrat Jack Reed was reelected in 2020 with 66.5% of the vote. He is running for reelection to a sixth term. [ 268 ] He is being challenged in the Democratic primary by elder care worker Connor Burbridge. [ 269 ] Former Rhode Island Republican Party official Raymond McKay is running for the Republican nomination. [ 270 ] Four-term Republican Lindsey Graham was reelected in 2020 with 54.4% of the vote. He was running for reelection to a fifth term. [ 271 ] Graham won the Republican nomination in the June 9 primary with 57% of the vote, [ 272 ] but died in office on July 11. [ 273 ] Governor Henry McMaster appointed Graham's sister Darline to serve the remainder of his term, and she is seeking a full term. A special Republican primary was held on August 11. Darline and U.S. Representative Ralph Norman advanced to the August 25 runoff. [ 274 ] Pediatrician Annie Andrews [ 275 ] won the Democratic primary with 61% of the vote. [ 276 ] South Carolina Libertarian Party nominee Kasie Whitener and Constitution Party nominee Mark Hackett were nominated by convention. [ 277 ] 2022 US Senate candidate Catherine Fleming Bruce is running as a write-in candidate. Mike Rounds Republican Two-term Republican Mike Rounds , who was reelected in 2020 with 65.7% of the vote, is running for a third term. [ 278 ] Rounds easily defeated Navy veteran and businessman Justin McNeil in the primary on June 2 to become the Republican nominee. [ 279 ] Businessman and former South Dakota state trooper Julian Beaudion was the Democratic nominee, [ 280 ] but withdrew from the race on August 4. [ 281 ] U.S. Navy and Air Force veteran, former Northern State University political science professor, and Democratic nominee for U.S. Senate in 2022 Brian Bengs has announced his candidacy as an independent. [ 113 ] Bill Hagerty Republican One-term Republican Bill Hagerty was elected in 2020 with 62.2% of the vote and is running for reelection. [ 282 ] Hagerty is the Republican nominee, as no other Republicans qualified for the primary ballot. [ 283 ] Consultant Marquita Bradshaw [ 283 ] won the Democratic nomination on August 6. [ 284 ] John Cornyn Republican Four-term Republican John Cornyn was reelected in 2020 with 53.5% of the vote, and ran for a fifth term in 2026. [ 285 ] Cornyn and state Attorney General Ken Paxton ran in the Republican primary on March 3. Since neither received more than 50% of the vote, they advanced to a runoff election held on May 26. [ 286 ] U.S. Representative for the 38th congressional district Wesley Hunt challenged Paxton and Cornyn, but lost the primary. [ 287 ] On May 19, both Hunt and President Trump endorsed Paxton. [ 288 ] Paxton defeated Cornyn in the runoff by a landslide and became the Republican nominee. State Representative James Talarico is the Democratic nominee, having defeated U.S. Representative Jasmine Crockett in the primary. [ 289 ] [ 290 ] Mark Warner Democratic Three-term Democrat Mark Warner was reelected in 2020 with 56% of the vote and is running for reelection. As the only person to submit the necessary number of signatures to appear on the primary ballot, Warner is the Democratic nominee. [ 119 ] Retired United States Army Major general Bert Mizusawa , who ran for U.S. Senate in 2018 and for Virginia's 2nd congressional district in 2010 , [ 291 ] won the Republican nomination over Certified Public Accountant Kim Farrington [ 292 ] and U.S. Marine Corps Reserve Colonel David Williams. [ 293 ] Shelley Moore Capito Republican Two-term Republican Shelley Moore Capito was reelected in 2020 with 70.3% of the vote and is running for reelection to a third term. [ 294 ] She won the Republican primary on May 19. [ 295 ] Former Morgantown City Councilwoman Rachel Fetty Anderson [ 296 ] won the Democratic primary on May 12, 2026. [ 297 ] Cynthia Lummis Republican One-term Republican Cynthia Lummis was elected in 2020 with 72.8% of the vote and is not seeking reelection. [ 25 ] U.S. Representative Harriet Hageman defeated Wyoming Army National Guard veteran Jimmy Skovgard for the Republican nomination on August 18, 2026. [ 298 ] Former state Representative James W. Byrd defeated landscaper Billy Benavidez for the Democratic nomination on August 18, 2026. [ 298 ] 2026 United States elections Opinion polling on the second Trump presidency ↑ 33 Class 2 seats, as well as 2 Class 3 seats being determined in special elections ↑ Majority control in an evenly divided Senate is determined by the Vice President of the United States , who has the power to break tied votes in their constitutional capacity as President of the Senate; accordingly, Senate control requires 51 seats or 50 seats with control of the vice presidency. 1 2 Both independent senators ( Bernie Sanders of Vermont , and Angus King of Maine ) caucus with the Democrats. 1 2 Markwayne Mullin won a special election in 2022 to fill Jim Inhofe 's Oklahoma Senate seat after Inhofe resigned for health reasons. Mullin resigned on March 23, 2026, to become United States Secretary of Homeland Security . Oklahoma Governor Kevin Stitt appointed Alan S. Armstrong to the seat, and he was sworn in on March 24, 2026. Oklahoma law requires appointees to affirm they will not seek a full term; Armstrong will not run for election. [ 13 ] 1 2 Republican senator Luther Strange ran to complete the term he was appointed to in 2017 but lost the primary to Roy Moore , who narrowly lost the general election to Democratic nominee Doug Jones . ↑ Two elected incumbent senators lost renomination in primaries in 2010: Lisa Murkowski in Alaska and Arlen Specter in Pennsylvania . After losing her primary, Murkowski ran a write-in campaign during the general election and won. In addition, Bob Bennett lost renomination at the state convention in Utah . ↑ Republican senator Maurice J. Murphy Jr. ran to complete the term he was appointed to in 1962 but placed third in the primary. [ 1 ] ↑ Two nominees in subsequent election cycles willingly withdrew their nominations after winning their primaries: Baron Hill in the 2016 election in Indiana and H. Brooke Paige in the 2018 election in Vermont . The replacement nominees were selected by their parties without a convention or special primary; both lost in the general election. ↑ In the 2010 Senate elections , the Massachusetts special election was not included in the list and not part in the regular election cycle. ↑ Appointed to the seat following the resignation of Al Franken . ↑ Appointed to the seat following the resignation of Markwayne Mullin . ↑ The last elections for this group of senators were in 2020, except for those elected in a special election or who were appointed after the resignation or death of a sitting senator, as noted. ↑ This forecast uses the terms "Likely" and "Very Likely" the same way the other forecasts use the terms "Lean" and "Likely". To avoid confusion, and for the purposes of equivalency, the terms "Likely" and "Very Likely" will be changed to "Lean" and "Likely". As well, "tossup" is labeled "uncertain", but for the purposes of this page it will be labeled "tossup". ↑ This website uses two different forecasts, a "legacy" and "complete" forecast. The website clarifies their legacy forecast is the one that should be used for apples to apples comparisons against other forecasts. ↑ Republican Marco Rubio won with 57.68% of the vote in 2022, but resigned on January 20, 2025, after being confirmed to become Secretary of State . ↑ Republican Ben Sasse won with 62.74% of the vote in 2020, but resigned on January 8, 2023, to be president of the University of Florida . ↑ Republican JD Vance won with 53.03% of the vote in 2022, but resigned on January 10, 2025, to become Vice President of the United States. ↑ Republican Jim Inhofe won with 62.91% of the vote in 2020, but resigned at the end of the 117th United States Congress . In 2022, Markwayne Mullin won with 61.77% of the vote. He resigned in 2026 after being sworn in as United States Department of Homeland Security . ↑ Republican Lindsey Graham won with 54.44% of the vote in 2020, but died in office on July 11, 2026. ↑ Democratic total includes Independents who caucus with the Democrats . ↑ Calculated by taking the difference of 100% and all other candidates combined. ↑ Republican incumbent Lindsey Graham was renominated, but died on July 11, 2026. 1 2 "How Often Do Sitting US Senators Place Third (Or Worse) in Primaries?" . Smart Politics. February 9, 2026 . Retrieved February 14, 2026 . ↑ "Class II - Senators Whose Terms of Service Expire in 2027" . UNITED STATES SENATE . Retrieved January 22, 2026 . 1 2 3 "2024 Presidential Elections By State Margin of Victory" . Fox News Elections . November 26, 2024 . Retrieved November 26, 2024 . ↑ "Election Results" . results.sos.ga.gov . Retrieved August 4, 2025 . ↑ "Jeanne Shaheen won't run for re-election, opening another Democratic Senate seat in 2026" . NBC News. March 12, 2025. ↑ "Will Democrats finally get a shot at taking out Susan Collins?" . Politico . March 25, 2025. ↑ Carney, Jordain (June 29, 2025). "Thom Tillis says he will retire following Trump attacks" . Politico . ↑ "Why Republicans start out as favorites in the 2026 Senate elections" . ABC News . Archived from the original on December 2, 2024 . Retrieved February 6, 2025 . ↑ Berman, Russell (May 12, 2025). "Retirement Is the New Resistance" . The Atlantic . Retrieved May 13, 2025 . ↑ "Senate Democratic retirements clear the way for a new generation: From the Politics Desk" . NBC News. April 24, 2025 . Retrieved May 13, 2025 . ↑ Eric Cox; Eric Lau (July 11, 2026). "Democrats are growing bullish on retaking the Senate. Here are the races to watch" . Washington Post . Retrieved July 15, 2026 . ↑ Bolton, Alexander (July 10, 2026). "Democrats fear chances of winning Senate may be slipping away" . The Hill . Archived from the original on July 14, 2026 . Retrieved July 16, 2026 . 1 2 "2025 Oklahoma Statutes Title 51. Officers §51-10. Vacancies - Appointments - Special elections" . Justia US Law . Retrieved March 25, 2026 . Prior to an appointment pursuant to paragraph 1 of subsection C of this section, a person who is a prospective appointee shall submit to the Secretary of State an oath affirming that the person will not file as a candidate for the office when it next appears on the ballot. The Secretary of State shall prescribe the oath required by this paragraph, and any oath submitted shall be public record and published on the website of the Office of the Secretary of State. ↑ "House retirements tied for most this century" . Axios . March 2, 2026 . Retrieved March 9, 2026 . 1 2 3 Angle, Alex (May 27, 2025). "Tuberville to announce run for governor in 2026" . Alabama Daily News . Retrieved May 27, 2025 . 1 2 Hulse, Carl (April 23, 2025). "Durbin, No. 2 Senate Democrat, to Retire After 44 Years in Congress" . The New York Times . Retrieved April 23, 2025 . 1 2 3 Jacobs, Jennifer (September 2, 2025). "Joni Ernst announces retirement from Senate in 2026, pledges ongoing community involvement" . CBS KGAN . Retrieved September 2, 2025 . 1 2 3 Schreiner, Bruce (February 20, 2025). "Sen. Mitch McConnell won't seek reelection in 2026, ending long tenure as Republican power broker" . Associated Press News . Retrieved February 20, 2025 . 1 2 3 Burke, Melissa Nann (January 28, 2025). "Michigan's Gary Peters won't seek reelection to U.S. Senate. Here's why" . The Detroit News . Retrieved January 28, 2025 . 1 2 3 Bakst, Brian (February 13, 2025). "Sen. Tina Smith won't seek reelection in 2026, putting Minnesota seat up for grabs" . Minnesota Public Radio . Retrieved February 13, 2025 . 1 2 "Daines withdraws from Senate race as filing closes" . KECI. March 5, 2026 . Retrieved March 5, 2026 . 1 2 3 Belman, Felice (March 12, 2025). "Senator Jeanne Shaheen, New Hampshire Democrat, Won't Run Again in 2026" . The New York Times . Retrieved March 12, 2025 . 1 2 3 4 Carney, Jordain (June 29, 2025). "Thom Tillis says he will retire following Trump attacks" . Politico . Retrieved June 29, 2025 . 1 2 Svirnovskiy, Gregory (March 24, 2026). "Stitt picks energy executive Alan Armstrong as next Oklahoma senator" . Politico . Retrieved March 24, 2026 . Armstrong is prohibited by Oklahoma law from seeking election to the seat this fall. 1 2 3 Release, Press (December 19, 2025). "Lummis Announces Decision To Not Seek Re-Election in 2026" . Wyoming News Now . Retrieved December 19, 2025 . 1 2 Fortinsky, Sarah (May 16, 2026). "Cassidy loses Louisiana Senate GOP primary as Trump-backed challenger advances to runoff" . The Hill . Retrieved May 16, 2026 . 1 2 Clark, Nell (May 26, 2026). "Live updates: Ken Paxton wins Senate Primary runoff, defeats incumbent Sen. John Cornyn" . Associated Press . Retrieved May 26, 2026 . 1 2 3 Wasserman, David (March 6, 2025). "Introducing the 2025 Cook Partisan Voting Index (Cook PVI℠)" . The Cook Political Report . Retrieved April 22, 2025 . ↑ "2026 CPR Senate Race Ratings" . Cook Political Report . Retrieved August 5, 2026 . ↑ "Senate Ratings" . Inside Elections . Retrieved August 7, 2026 . 1 2 "2026 Senate ratings" . Sabato's Crystal Ball . Retrieved August 4, 2026 . ↑ Phillips, Logan. "2026 Senate Forecast" . Race to the WH . Retrieved August 19, 2026 . ↑ "2026 Senate Forecast" . The Economist . Retrieved August 5, 2026 . ↑ "Battle for the Senate 2026 | RealClearPolling" . www.realclearpolling.com . Retrieved August 14, 2026 . ↑ "2026 Senate Ratings" . Decision Desk HQ . Retrieved August 5, 2026 . ↑ Numa, Rémy (August 18, 2026). "Fox News Power Rankings: As Democrats turn left, Black voters tap the brakes" . Fox News . Retrieved August 18, 2026 . ↑ "2026 Senate Races | VoteHub" . VoteHub . Retrieved August 6, 2026 . ↑ "2026 Congressional Forecast" . FiftyPlusOne . Retrieved August 11, 2026 . ↑ "Split Ticket 2026 Midterms Model" . The Argument . Retrieved August 7, 2026 . ↑ Silver, Nate ; McKown-Dawson, Eli (August 21, 2026) [August 11, 2026]. "FLIPR 2026 midterm election forecast" . Silver Bulletin . Archived from the original on August 22, 2026 . Retrieved August 22, 2026 – via Substack . ↑ "Generic Congressional Ballot" . Decision Desk HQ . Retrieved October 21, 2025 . ↑ "Generic Ballot" . FiftyPlusOne . Retrieved October 20, 2025 . ↑ "2026 Generic Congressional Vote" . RealClearPolitics . Retrieved October 21, 2025 . ↑ "Who's ahead on the generic congressional ballot?" . Silver Bulletin . Retrieved October 21, 2025 . ↑ "Who leads the 2026 generic congressional ballot?" . VoteHub . Retrieved October 21, 2025 . ↑ "2026 Generic Ballot Polling" . Race to the WH . Retrieved November 25, 2025 . 1 2 "Democrat Roy Cooper and Republican Michael Whatley set to face off in key North Carolina Senate race" . NBC News . March 3, 2026 . Retrieved March 4, 2025 . 1 2 "Roy Cooper, former NC Governor, announces he is running for Senate in 2026" . ABC11 Raleigh-Durham . July 28, 2025 . Retrieved July 28, 2025 . ↑ "Michael Whatley officially enters North Carolina Senate race, endorsed by Trump" . ABC13 Asheville . December 2, 2025 . Retrieved February 12, 2026 . 1 2 3 4 Altimari, Mary Ellen McIntire and Daniela (January 7, 2025). "An early look at potentially vulnerable senators in 2026" . Roll Call . Retrieved June 5, 2025 . ↑ "Maine - Election Results 2008 - The New York Times" . The New York Times . Retrieved June 5, 2025 . ↑ "Maine U.S. Senate Election Results" . The New York Times . November 3, 2020. ISSN 0362-4331 . Retrieved June 5, 2025 . ↑ Coblerobler, Ariana Joy (August 1, 2025). "Dan Osborn endorsed by NE Democratic Party for 2026 Senate race" . NTV . Retrieved November 16, 2025 . ↑ Cappelletti, Joey; Volmert, Isabella (January 28, 2025). "Michigan Democratic Sen. Gary Peters will not run for reelection, opening a key Senate seat in 2026" . AP News . Retrieved June 5, 2025 . 1 2 Robinson, Taylor (April 14, 2025). "Mike Rogers Runs for Senate in Michigan After a Close 2024 Loss" . The New York Times . ISSN 0362-4331 . Retrieved April 14, 2025 . 1 2 Wu, Nicholas (April 17, 2025). "Abdul El-Sayed launches Michigan Senate campaign" . Politico . Retrieved April 17, 2025 . ↑ Bluestein, Greg (July 18, 2025). "U.S. Rep. Mike Collins prepares Senate run in Georgia, aiming to seize MAGA lane" . AJC Politics. The Atlanta Journal-Constitution . Retrieved July 18, 2025 . ↑ Mancini, Ryan (July 30, 2026). "Ossoff reelection bid, 5 House seats move toward Democrats: Sabato's Crystal Ball" . The Hill . Retrieved August 5, 2026 . ↑ Friedman, Amanda (April 8, 2025). "Former New Hampshire Gov. Sununu won't run for Senate in 2026" . Politico . Retrieved June 5, 2025 . 1 2 3 Graham, Michael (October 22, 2025). "John E. Sununu Makes It Official, Announces Bid to Return to U.S. Senate" . NH Journal . Retrieved October 22, 2025 . ↑ Iverson, Erik (July 9, 2026). "NH Senate Race is a Dead Heat" (PDF) . Peak Insights . Retrieved July 10, 2026 . ↑ "New Hampshire 2026: Sununu Leads GOP Nomination, Ties Pappas for Senate" . Emerson College Polling . March 26, 2026 . Retrieved July 19, 2026 . 1 2 3 Garrity, Kelly; Kashinsky, Lisa (June 25, 2025). "Scott Brown launches campaign for Senate in New Hampshire" . Politico . Retrieved June 30, 2025 . ↑ "2026 Candidate Filing Deadlines" . ncsl.org . Retrieved January 24, 2026 . 1 2 "2026 State Primary Election Dates" . ncsl.org . Retrieved January 24, 2026 . ↑ Giroux, Greg (January 17, 2025). "New Florida Senator Moody Faces First Election Test in 2026" . bgov.com . ↑ Beggin, Riley. "Trump taps Marco Rubio for Secretary of State" . USA Today . ↑ Smyth, Julie Carr; Groves, Stephen (January 17, 2025). "Ohio Lt. Gov. Jon Husted will succeed JD Vance in the US Senate" . AP News . 1 2 3 "Candidate Listing for 2026 General Election" . FloridaSecretary of State . April 24, 2026. 1 2 3 "Secretary LaRose Releases List of Candidates Filing for Statewide Office" . Ohio Secretary of State . February 4, 2026 . Retrieved February 4, 2026 . ↑ "Socialist and Black liberation organizer Greg Levy launches 2026 Ohio Senate run" . WSYX . October 25, 2025 . Retrieved October 22, 2025 . ↑ "Qualified 2026 Republican Candidates" . Alabama Republican Party . January 8, 2026. ↑ "2026 Candidates" . Alabama Democrats . January 8, 2026. 1 2 3 4 "2026 Primary Election" . Alaska Division of Elections . Retrieved January 15, 2026 . ↑ Alex DeMarban (June 29, 2026). "Alaska Supreme Court rules that Dan J. Sullivan can appear on the ballot against Sen. Dan Sullivan" . Anchorage Daily News . Retrieved June 29, 2026 . 1 2 "2026 Preferential Primary and Nonpartisan Judicial General Election" . Arkansas Secretary of State . Retrieved November 3, 2025 . ↑ Derby, Caroline (February 26, 2026). "A look at US Senate candidates in the 2026 Arkansas primary" . KARK . Retrieved March 5, 2026 . Whoever wins both primaries will go on to face Libertarian Jeff Wadlin in the general election. 1 2 "2026 Unofficial Primary Election Candidate List" . www.sos.state.co.us . Retrieved April 29, 2026 . 1 2 3 4 5 6 "Filed Candidates by Office" . Delaware Department of Elections . Retrieved November 14, 2025 . 1 2 "Qualifying Candidate Information" . Georgia Secretary of State . Retrieved February 27, 2026 . 1 2 3 4 "Search Filed Candidates" . Idaho Secretary of State . Retrieved February 23, 2026 . 1 2 "Candidate Filing Search" . Illinois State Board of Elections . Retrieved October 27, 2025 . 1 2 "Candidate List" . Iowa Secretary of State . Retrieved February 23, 2026 . ↑ Foix, Chase (April 21, 2025). "US Senate hopeful speaks to Rotary Club of Sioux City" . KCAU-TV . Retrieved August 7, 2025 . 1 2 "Candidates for the 2026 Primary" . Kansas Secretary of State . Retrieved January 15, 2026 . 1 2 "Candidate Filings with the Office of the Secretary of State" . Kentucky Secretary of State . Retrieved November 5, 2025 . 1 2 "Candidate Inquiry" . Louisiana Secretary of State . February 11, 2026 . Retrieved February 11, 2026 . ↑ "2026 Primary Candidate List" . Department of the Secretary of State of Maine . Retrieved February 5, 2026 . ↑ Condon, Emily R.; Margie, Cullen (July 25, 2026). "Troy Jackson replaces Graham Platner as Maine Senate Democratic nominee" . USA Today . Retrieved July 25, 2026 . 1 2 Klein, Asher (November 10, 2025). "Republican John Deaton announces second straight U.S. Senate run" . NBC10 Boston . Retrieved November 11, 2025 . 1 2 "Sen. Ed Markey, 78, says he'll seek third term in 2 years" . WCVB-TV . October 25, 2024. 1 2 "Congressman Seth Moulton announces run for U.S. Senate" . WBUR . October 15, 2025 . Retrieved October 15, 2025 . 1 2 3 "2026 November General Election Candidate Listing" . Michigan Department of State . Retrieved August 11, 2026 . 1 2 Gomez, Henry J. (August 5, 2026). "Abdul El-Sayed wins Michigan's Democratic Senate primary, notching a Midwest victory for the left" . NBC News . Retrieved August 5, 2026 . 1 2 "Candidate Filings" . Minnesota Secretary of State . Retrieved May 17, 2026 . 1 2 3 "2026 Primary Election Candidate Qualifying List" . Mississippi Secretary of State. December 29, 2025 . Retrieved December 29, 2025 . 1 2 3 4 "FEDERAL PRIMARY 2026" . Montana Secretary of State . Retrieved February 17, 2026 . 1 2 "2026 Elections" . Nebraska Secretary of State. January 5, 2026. 1 2 Vakil, Caroline (July 8, 2025). "Dan Osborn launches independent Senate bid against Ricketts in Nebraska" . The Hill . Retrieved July 8, 2025 . 1 2 Bookman, Todd (August 20, 2025). "Karishma Manzur enters NH Senate race, joining Pappas in Democratic primary" . New Hampshire Public Radio . Retrieved August 21, 2025 . 1 2 Sexton, Adam (April 3, 2025). "News 9 Exclusive: Chris Pappas announces he will run for U.S. Senate" . WMUR . Retrieved April 3, 2025 . ↑ Blechl, Robert (September 26, 2025). "Bethlehem State Rep. Announces U.S. Senate Run" . Caledonian Record . Retrieved September 28, 2025 . 1 2 "Unofficial Primary Election Candidates: U.S. House of Representatives" . New Jersey Secretary of State . Retrieved February 13, 2026 . ↑ "2026 Primary Election Contest/Candidate List" . New Mexico Secretary of State . February 3, 2026 . Retrieved February 4, 2026 . ↑ "Sen. Ben Ray Lujan will face off against Republican write-in candidate Larry Marker in November" . KUNM . June 4, 2026 . Retrieved June 4, 2026 . 1 2 3 "Candidate Lists" . North Carolina State Board of Elections . Retrieved December 1, 2025 . 1 2 3 4 5 6 "OK Candidate Filing" . Oklahoma State Election Board . Retrieved April 1, 2026 . 1 2 "Candidates for 2026 Primary ELection" . Oregon Secretary of State . Retrieved January 15, 2026 . 1 2 3 4 5 "Candidates in Upcoming Elections" . Rhode Island Department of State . Retrieved June 2, 2026 . 1 2 3 "Candidate Listing" . South Carolina Election Commission . Retrieved March 14, 2026 . 1 2 "Candidate Listing" . South Carolina Election Commission . Retrieved July 21, 2026 . ↑ Carpentier, Bella (April 12, 2026). "Republican Paul Dans exits the Senate race, endorses Mark Lynch" . The Greenville News . Retrieved April 11, 2026 . 1 2 "Brian Bengs announces independent run for U.S. Senate" . Dakota News Now . April 30, 2025 . Retrieved April 30, 2025 . ↑ "2026 Primary Election Candidate List" . South Dakota Secretary of State . Retrieved January 7, 2026 . 1 2 3 4 5 6 7 8 9 10 "Candidate Lists" . Tennessee Secretary of State . Retrieved January 10, 2026 . 1 2 3 "Candidate Information" . Texas Secretary of State . Retrieved November 11, 2025 . ↑ "August 4, 2026 Primary Elections Candidates" . Virginia Department of Elections . Retrieved May 1, 2026 . ↑ "Morning Notes for April 3, 2026" . ARLnow.com . April 3, 2026 . Retrieved April 3, 2026 . 1 2 Palmer, Clark (December 2, 2025). "US Senator Mark Warner announces re-election bid" . WFIR . Retrieved December 2, 2025 .

1 2 3 4 "Candidates Listing by Office" . West Virginia Secretary of State . Retrieved January 12, 2026 . 1 2 "2026 Election Information: Unofficial Primary Election Candidates Roster" . Wyoming Secretary of State . Retrieved May 15, 2026 . ↑ "Alabama Sen. Tommy Tuberville confirms run for second term" . CBS 42 . November 13, 2024. Archived from the original on November 14, 2024 . Retrieved November 13, 2024 . ↑ Thomas, Erica (May 28, 2025). " 'Fighter for Alabama': Former Navy SEAL Jared Hudson running for U.S.…" . 1819 News . Retrieved May 28, 2025 . ↑ Baker, Trent. " 'The nation needs strong conservative leadership': Steve Marshall announces U.S. Senate bid" . 1819 News . Retrieved May 29, 2025 . ↑ Markus, Nicole (August 12, 2025). "Barry Moore announces run for Senate in Alabama" . Politico . Retrieved August 12, 2025 . 1 2 "Alabama Senate Primary Election 2026 Live Results: Track Barry Moore, Everett Wess and Others" . www.nbcnews.com . May 20, 2026 . Retrieved May 20, 2026 . ↑ "Democrat Dakarai Larriett launches U.S. Senate campaign" . The Cullman Tribune . April 7, 2025 . Retrieved April 7, 2025 . ↑ Gann, Heather (February 5, 2026). "Alabama 2026 election: Everyone running for Tuberville's US Senate seat" . AL.com . Retrieved February 8, 2026 . ↑ Downing, Suzanne (March 22, 2025). "Breaking: Sen. Dan Sullivan formally announces his campaign for reelection" . Must Read Alaska . Retrieved June 4, 2025 . 1 2 3 Samuels, Iris; Kanagy, Mari. "Candidate slate finalized for Alaska's statewide elections" . Anchorage Daily News . Retrieved June 2, 2026 . ↑ DeMarban, Alex; Samuels, Iris. "2 Dan Sullivans: U.S. senator gets a namesake challenger in Alaska — but is it a 'trick'?" . Anchorage Daily News . Retrieved June 2, 2026 . ↑ "Peltola launches bid for Sullivan's Senate seat in Alaska" . Retrieved January 12, 2026 . ↑ "FEC Form 2 for Report FEC-1848391" . docquery.fec.gov . ↑ Johnson, Julia (February 27, 2025). "Top Intel Republican Tom Cotton seeking re-election to Senate in 2026" . Fox News . Retrieved February 27, 2025 . ↑ Jared, George (May 13, 2025). "Hallie Shoffner running for US Senate to challenge Cotton" . Talk Business & Politics . Retrieved May 31, 2025 . ↑ Festenstein, Noah (August 18, 2023). "Colorado's Hickenlooper says he'll seek reelection in 2026, favors declassifying marijuana" . Denver Gazette . Retrieved December 16, 2023 . ↑ Sarles, Jesse (August 22, 2024). "Sen. John Hickenlooper says his re-election bid in two years will be his last campaign for Senate" . CBS News . Retrieved December 6, 2024 . ↑ Moore, Marilyn (December 8, 2025). "State Sen. Julie Gonzales announces run for Hickenlooper's seat" . 9 News . Retrieved December 8, 2025 . ↑ "Breslin 2026 U.S. Senate Campaign Seeks Volunteers" . University of Colorado Denver . February 12, 2025 . Retrieved February 19, 2025 . ↑ Heaney, Briana; Kim, Caitlyn (April 11, 2026). "Gubernatorial candidates Scott Bottoms, Victor Marx win slots on GOP primary ballot at state assembly" . Colorado Public Radio . Retrieved April 12, 2026 . ↑ Toomer, Lindsey (January 5, 2026). "Republican Mark Baisley now running for U.S. Senate, drops bid for Colorado governor" . Colorado Newsline . Retrieved January 7, 2026 . 1 2 3 "Department of Elections - State of Delaware" . elections.delaware.gov . Retrieved July 14, 2026 . ↑ Dixon, Matt (January 16, 2025). "Ron DeSantis picks Florida Attorney General Ashley Moody to fill Rubio's Senate seat" . NBC News. ↑ "Ashley Moody to kick off Senate bid with 50th birthday bash" . Florida Politics . February 27, 2025 . Retrieved February 28, 2025 . ↑ "Florida Senate candidate Angie Nixon promises to fight for working people - CBS Miami" . www.cbsnews.com . March 15, 2026 . Retrieved March 20, 2026 . ↑ "Whistleblower Alexander Vindman to seek Florida Democratic nomination for Senate" . January 27, 2026 . 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