California holds primary election for governor, Senate, and House seats

California holds its top-two primary for governor, U.S. Senate, and all congressional seats on June 2, 2026. The governor''s race is wide open: Gavin Newsom is term-limited, and top Democratic candidates include former Rep. Katie Porter, former HHS Secretary Xavier Becerra, and billionaire Tom Steyer. The seat is safe Democratic in November but the primary is genuinely competitive. California also implemented a new congressional map via a November 2025 ballot measure eliminating five Republican-held districts, reshaping multiple House races.