
Incumbent Mike Thompson (D) and Eric Jones (D) advanced from the top-two primary for California's 4th Congressional District on June 2, 2026. Six Republicans and one independent candidate also ran. As of March 2026, Thompson (D) and Jones (D) led in fundraising and local media attention. Local political observers described the primary in terms of…

This year’s filing deadline for candidates running for the U.S. House of Representatives in Colorado was March 18, 2026. This year has the second-most contested primaries since 2014. In total, seven primaries — five Democratic and two Republican — are contested this year. In total, there were six contested primaries in 2024, eight in 2022,…

On June 2, incumbent Larry Rhoden and Toby Doeden advanced to a Republican primary runoff on July 28. Neither received the 35% of the vote required to win the primary outright. As of June 3, Doeden received 31% of the vote, Rhoden 25%, Dusty Johnson 23%, and Jon Hansen 21%. This was the first time…

Two Republican incumbents lost in the Montana Senate primaries on June 2. This was the first year since 2010 in which more than one incumbent lost in the chamber's primaries. At the start of Montana's 2025 state legislative session, nine Republican senators voted with the chamber's Democrats to change procedural rules for the session. In…

Eleven candidates are running for three seats on the Orange County Board of Supervisors on June 2. Two incumbents are running for re-election, and the other seat is open. Although elections for the Orange County Board of Supervisors are officially nonpartisan, heading into the elections, media outlets reported that Democrats had a 3-2 majority on…

New Mexico is holding elections for all 70 seats in its state House this year. New Mexico doesn’t hold state Senate elections during midterm election years. Here’s a look at how New Mexico’s 2026 state House elections compare to previous years. There are 64 incumbents running for re-election, of whom 13 (20.3%) are contested in…

Incumbent Ed Case (D), Della Au Belatti (D), Jarrett Keohokalole (D), and two other candidates are running in the Democratic primary for Hawaii's 1st Congressional District on August 8, 2026. The filing deadline is June 2, 2026. As of May 2026, Case, Belatti, and Keohokalole led in fundraising and local media attention. Spectrum Local News'…

Two Maine state legislative incumbents face primary contests in 2026, the fewest at any point since 2018. This is a 67% decrease in the number of incumbents facing challengers compared to 2024. Both of the contested incumbents are Republican state representatives. Maine has 28 contested state legislative primaries in 2026, up 56% from 2024. Of…

Incumbent Shri Thanedar (D), Donavan McKinney (D), and four other candidates are running in the Democratic primary for Michigan's 13th Congressional District on August 4, 2026. As of May 2026, Thanedar and McKinney led in endorsements, fundraising, and local media attention. Local radio station WDET's Russ McNamara said Thanedar is "facing a difficult primary opponent,…

This year’s filing deadline for candidates running for the U.S. House of Representatives in Pennsylvania was March 10, 2026. Rep. Summer Lee (D) is the only incumbent running in a contested primary this year. That's the fewest number of incumbents running in a contested primary since 2014. There were three incumbents in contested primaries in…