
Ken Paxton (R) defeated incumbent John Cornyn (R) in the Republican primary runoff for U.S. Senate in Texas on May 26, 2026. Paxton and Cornyn were the top two finishers in the March 3 primary. The primary advanced to a runoff because neither received more than 50% of the vote. Cornyn led Paxton 42.0%–40.5% in…

Since no candidate won 50% of the vote in the Republican primary for the U.S. Senate in Alabama, the top two vote getters — Barry Moore (R) and Jared Hudson (R) — advanced to the Republican primary runoff on June 16, 2026. Ahead of the Republican primary on May 19, 2026, Moore, Hudson, and Steve…

Abdul El-Sayed (D), Mallory McMorrow (D), Haley Stevens (D), and two other candidates are running in the Democratic primary for U.S. Senate in Michigan on August 4, 2026. As of May 2026, El-Sayed, McMorrow, and Stevens led in polling, endorsements, fundraising, and local media attention. Incumbent Gary Peters (D) is not running for re-election. Crain's…

Two candidates are running in the Democratic primary to represent Iowa in the U.S. Senate on June 2, 2026: Josh Turek (D) and Zach Wahls (D). Incumbent Sen. Joni Ernst (R) is not running for re-election. The Cook Political Report's Jessica Taylor describes this race as one of the 2026 primaries in which Democrats are…

This year, 19 former House members announced candidacies for a non-consecutive term. Three former Senators have announced campaigns for office, meaning a total of 22 former members of Congress have announced candidacies, the highest number in any cycle going back to 2016. The 19 House members are running in 13 states, though two — Rod…

Since Oct. 17, 12 members of Congress—10 House members and two Senators—have announced they will not seek re-election in 2024. The 10 House members include five Republicans and five Democrats. The two retiring Senators are both Democrats. Including the retirements above, 33 members of Congress—seven U.S. Senators and 26 House members—have announced they will not…