The next Senate elections are the midterms on Tuesday, November 3, 2026, when the 33 seats in the Senate’s Class II, whose terms expire in 2027, are on the ballot. Republicans hold the majority going in: the Senate that took office in January 2025 opened with 53 Republicans, 45 Democrats and 2 independents.
This page names no price on the 2026 races. It keeps the 2024 Senate races as the record and takes the 2026 markets when a source we can check posts them.
Federal elections fall on the Tuesday after the first Monday in November, which in 2026 is November 3. The Class II seats were last elected in 2020, and their terms end in 2027. A seat filled by appointment can also be on the ballot as a special election, depending on the state’s law.
The 2024 Senate races
Before the 2024 election, the Senate’s own record lists the Democrats as the majority party; after it, Republicans held 53 seats. The seven races this page covered in 2024 are now held by these senators, according to the Senate’s own member list:
| State | Seat now held by |
|---|---|
| Arizona | Ruben Gallego (D) |
| Michigan | Elissa Slotkin (D) |
| Montana | Tim Sheehy (R) |
| Nevada | Jacky Rosen (D) |
| Ohio | Bernie Moreno (R) |
| Pennsylvania | Dave McCormick (R) |
| Wisconsin | Tammy Baldwin (D) |
Republicans took Montana, Ohio and Pennsylvania from Democratic senators, and Democrats held Arizona, Michigan, Nevada and Wisconsin.
What this page called in 2024
| Bet, as published | Result |
|---|---|
| Michigan: Elissa Slotkin (D) -500 | Won |
| Ohio: Bernie Moreno (R) +140 | Won |
| Pennsylvania: Bob Casey (D) -800 | Lost: McCormick won |
| Wisconsin: Tammy Baldwin (D) -800 | Won |
| Arizona: Ruben Gallego (D) -500 | Won |
| Montana: Tim Sheehy (R) -300 | Won |
| Nevada: Sam Brown (R) +250 | Lost: Rosen won |
Five of the seven calls won. The one underdog that came in, Moreno at +140, implied a 41.7% chance; the favorite that lost, Casey at -800, implied 88.9%.
Where to go next
Our presidential election odds and predictions page covers the White House race. Election markets are not offered by every sportsbook or in every state, so check what is legal where you are before you look for a price.