which senators are up for reelection in 2026

February 23, 2026

In 2026, the Senate seats up are the regular “Class 2” seats: one in each of 34 states, held by a mix of Democrats, Republicans, and independents who caucus with a party.

Big-picture overview

The 2026 United States Senate elections are for the 34 Class 2 seats, whose regular six‑year terms end in January 2027.

These races will decide control of the chamber for the second half of President Donald Trump’s term.

States with seats up (Class 2)

Each of these states has one Senate seat up in 2026.

Alaska – Dan Sullivan (R)
Alabama – Tommy Tuberville (R)
Arkansas – Tom Cotton (R)
Colorado – John Hickenlooper (D)
Delaware – Chris Coons (D)
Georgia – Jon Ossoff (D)
Idaho – Jim Risch (R)
Illinois – Dick Durbin (D)
Iowa – Joni Ernst (R)
Kansas – Roger Marshall (R)
Kentucky – Mitch McConnell (R)
Louisiana – Bill Cassidy (R)
Maine – Susan Collins (R)
Massachusetts – Ed Markey (D)
Michigan – Gary Peters (D)
Minnesota – Tina Smith (D)
Mississippi – Cindy Hyde‑Smith (R)
Montana – Steve Daines (R)
Nebraska – Ben Sasse’s successor seat (R)
New Hampshire – Jeanne Shaheen (D)
New Jersey – Cory Booker (D)
New Mexico – Ben Ray Luján (D)
North Carolina – Thom Tillis (R)
Oklahoma – James Lankford (R)
Oregon – Jeff Merkley (D)
Rhode Island – Jack Reed (D)
South Carolina – Lindsey Graham (R)
South Dakota – Mike Rounds (R)
Tennessee – Bill Hagerty (R)
Texas – John Cornyn (R)
Virginia – Mark Warner (D)
West Virginia – Shelley Moore Capito (R)
Wyoming – Cynthia Lummis (R, reported retiring, so this may be an open seat)

(Exact statuses—running again, retiring, or still undecided—are shifting; for example, reports now describe Lummis as retiring, making Wyoming an open race.)

Notable developing storylines

Maine (Susan Collins, R): Long‑time, often described as moderate Republican; age and voting record under Trump are major discussion points in forums and news, and it is expected to be closely watched.

Colorado & Virginia (Hickenlooper, Warner – both D): Both have announced reelection bids and are treated as key defense seats for Democrats in states that lean slightly blue at the presidential level.

Control of the chamber: Analysts note Democrats must defend over a dozen competitive or potentially competitive seats while also flipping several GOP seats to win back a solid majority, making 2026 a challenging map for them.

Quick HTML table of seats up

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<table>
  <thead>
    <tr>
      <th>State</th>
      <th>Incumbent</th>
      <th>Party</th>
    </tr>
  </thead>
  <tbody>
    <tr><td>Alaska</td><td>Dan Sullivan</td><td>R</td></tr>
    <tr><td>Alabama</td><td>Tommy Tuberville</td><td>R</td></tr>
    <tr><td>Arkansas</td><td>Tom Cotton</td><td>R</td></tr>
    <tr><td>Colorado</td><td>John Hickenlooper</td><td>D</td></tr>
    <tr><td>Delaware</td><td>Chris Coons</td><td>D</td></tr>
    <tr><td>Georgia</td><td>Jon Ossoff</td><td>D</td></tr>
    <tr><td>Idaho</td><td>Jim Risch</td><td>R</td></tr>
    <tr><td>Illinois</td><td>Dick Durbin</td><td>D</td></tr>
    <tr><td>Iowa</td><td>Joni Ernst</td><td>R</td></tr>
    <tr><td>Kansas</td><td>Roger Marshall</td><td>R</td></tr>
    <tr><td>Kentucky</td><td>Mitch McConnell</td><td>R</td></tr>
    <tr><td>Louisiana</td><td>Bill Cassidy</td><td>R</td></tr>
    <tr><td>Maine</td><td>Susan Collins</td><td>R</td></tr>
    <tr><td>Massachusetts</td><td>Ed Markey</td><td>D</td></tr>
    <tr><td>Michigan</td><td>Gary Peters</td><td>D</td></tr>
    <tr><td>Minnesota</td><td>Tina Smith</td><td>D</td></tr>
    <tr><td>Mississippi</td><td>Cindy Hyde-Smith</td><td>R</td></tr>
    <tr><td>Montana</td><td>Steve Daines</td><td>R</td></tr>
    <tr><td>Nebraska</td><td>Seat last held by Ben Sasse</td><td>R</td></tr>
    <tr><td>New Hampshire</td><td>Jeanne Shaheen</td><td>D</td></tr>
    <tr><td>New Jersey</td><td>Cory Booker</td><td>D</td></tr>
    <tr><td>New Mexico</td><td>Ben Ray Luján</td><td>D</td></tr>
    <tr><td>North Carolina</td><td>Thom Tillis</td><td>R</td></tr>
    <tr><td>Oklahoma</td><td>James Lankford</td><td>R</td></tr>
    <tr><td>Oregon</td><td>Jeff Merkley</td><td>D</td></tr>
    <tr><td>Rhode Island</td><td>Jack Reed</td><td>D</td></tr>
    <tr><td>South Carolina</td><td>Lindsey Graham</td><td>R</td></tr>
    <tr><td>South Dakota</td><td>Mike Rounds</td><td>R</td></tr>
    <tr><td>Tennessee</td><td>Bill Hagerty</td><td>R</td></tr>
    <tr><td>Texas</td><td>John Cornyn</td><td>R</td></tr>
    <tr><td>Virginia</td><td>Mark Warner</td><td>D</td></tr>
    <tr><td>West Virginia</td><td>Shelley Moore Capito</td><td>R</td></tr>
    <tr><td>Wyoming</td><td>Cynthia Lummis (retiring)</td><td>R</td></tr>
  </tbody>
</table>

Information gathered from public forums or data available on the internet and portrayed here.