- Democratic Party66%
- Republican Party34%
The story so far
written Oct 5What is happening
Control of the U.S. Senate determines the legislative agenda for the second half of the presidential term and the confirmation of judicial nominees [1][3]. Democrats currently hold a 67% chance to win the chamber on Polymarket, while Republicans are priced at 34%. The general election ballot for 35 seats is set for November 3, 2026, following the conclusion of primary contests [1][2]. Republicans currently hold the majority and are defending 22 seats, compared to 13 seats held by Democrats [1]. Eight races are classified as competitive, including a ranked-choice voting contest in Alaska where incumbent Senator Dan Sullivan (R) and Mary Peltola (D) advanced from the primary [1]. In Florida, the special election matchup is set between Ashley Moody (R) and Angie Nixon (D) [2]. Democrats are attempting to flip seats in Ohio, Texas, North Carolina, and Maine to regain control of the chamber [3].
What to watch
The Federal Election Commission publishing the official list of certified Senate candidates for the 2026 election would confirm the final field of contenders. State election officials releasing certified statewide vote totals on election night would determine the winners of the 35 seats at stake. The Senate Majority Leader announcing the party that holds a majority after the official canvass and certification by state authorities would settle the leadership of the chamber. The U.S. Senate swearing in new members and confirming party control during its first organizational session would finalize the transition.
Read the full brief · how we got here
How we got here
Primary results from earlier this year show several incumbents lost their seats to challengers [3]. Republican challengers won primaries in Indiana, Louisiana, Kentucky, and Texas, while Democratic challengers secured upsets in Connecticut, Michigan, and Colorado [3]. All 35 races were finalized for the November 3 ballot after the completion of state-by-state primary schedules [1][2].
References · 3
- [1]whatsonmyballot.info — 2026 Senate Elections: All 35 Races & Which Senators Are Up
- [2]congresscountdown.com — 2026 Primary Results by State: Senate & Key House Nominees
- [3]apnews.com — 2026 Midterm Election Results: Senate, House and Governor Races
What would close this
0 of 4 metTimeline
newest firstWhen we started following: Republicans defend 22 of 35 Senate seats as general election matchups set for November 3
The general election ballot for 35 U.S. Senate seats is set for November 3, 2026, following the conclusion of primary contests [1][2]. Republicans currently hold the Senate majority and are defending 22 seats, while Democrats are defending 13 [1]. Eight races are classified as competitive, including a four-way ranked-choice voting contest in Alaska where incumbent Senator Dan Sullivan (R) and Mary Peltola (D) advanced from the primary [1].
Primary results show that several incumbents lost their seats earlier this year, with successful Republican challengers in Indiana, Louisiana, Kentucky, and Texas, and Democratic upsets in Connecticut, Michigan, and Colorado [3]. In Florida, the matchup for the special election is set between Ashley Moody (R) and Angie Nixon (D) [2]. Democrats seek to flip seats in Ohio, Texas, North Carolina, and Maine to regain chamber control [3]. Polymarket prices the Democratic Party at 67% and the Republican Party at 34% to win the Senate in 2026.