New York's 7th congressional district

Several California congressional primaries pit establishment Democrats against insurgent challengers, a dynamic that could complicate Hakeem Jeffries' hold on House Democratic leadership if he seeks the speakership in a future majority. Under California's top-two primary system, some races feature Democrat-vs-Democrat matchups between incumbents and younger, further-left or anti-establishment rivals.

Rep. Mike Thompson faces venture capitalist Eric Jones, who says he wouldn't commit to backing Jeffries as speaker. Rep. Doris Matsui, who trailed in the June primary, faces progressive Sacramento Councilmember Mai Vang, who has said she won't support Jeffries. In the race to succeed Nancy Pelosi, state Sen. Scott Wiener backs Jeffries while rival Connie Chan says any speaker candidate must "earn" her vote. Rep. Aisha Wahab, who already defied party leadership once, faces Melissa Hernandez in a rematch. Rep. Jimmy Gomez, under a House Ethics Committee investigation he denies, faces progressive challenger Angela Gonzales-Torres. Many challengers are aligned with the Democratic Socialists of America, signaling a potential bloc of leadership skeptics if elected.

Incumbent Rep. Doris Matsui, 81, faces the toughest reelection fight of her 21-year House tenure from progressive Sacramento City Councilmember Mai Vang, 41, in California's redrawn 7th Congressional District. Vang narrowly led the June primary with about 31.2% of the vote to Matsui's 29.1%, edging out Republican Zachariah Wooden for the second runoff spot in the solidly Democratic seat.

Redrawn under Proposition 50, the district now stretches from El Dorado Hills and Placerville south to Lodi and Linden, absorbing more GOP-leaning El Dorado County suburbs while losing West Sacramento and other areas. Matsui, who succeeded her late husband Robert in the seat, has secured backing from Gov. Gavin Newsom, Sen. Alex Padilla and Nancy Pelosi, and holds a large fundraising and cash-on-hand advantage. Vang, a Hmong refugees' daughter and council progressive known for shifting police funding toward youth and homeless services, has built her campaign on Medicare-For-All, affordable housing and rejecting corporate PAC money, drawing support from outside progressive groups.

Florida Rep. Cory Mills lost his Republican primary in the state's 7th Congressional District to former TV anchor Ryan Elijah, ending his bid for a third term. Mills's campaign was marked by allegations of sexual misconduct, a court injunction from a former girlfriend, a House Ethics Committee investigation into misconduct and campaign finance claims, and questions about his military record. President Trump had given Mills his "Complete and Total Endorsement" in February, but later distanced himself by excluding Mills from a round of congressional endorsements. Florida incumbents Anna Paulina Luna and Mike Haridopolos, along with Gov. Ron DeSantis, backed Elijah instead.

Elijah will face Democrat and military veteran Bale Dalton in November. The district is expected to remain Republican-leaning under Florida's newly redrawn congressional map, though analysts note the race could factor into broader midterm dynamics as Democrats are currently favored to retake the House majority.