Incumbent Democrat Raul Ruiz faces three Republican challengers—Joe Males, Ronald Huffman, and Ceci Andrade Truman—in California's June 2, 2026, top-two primary for the 25th congressional district. The solidly Democratic district, redrawn under recent redistricting, favors Ruiz's reelection path, while Males has emerged as the leading Republican contender based on prior campaigns and local profile. The primary determines the two candidates advancing to the November general election regardless of party affiliation, with early voting and ballot mailing already underway. No major late developments have altered the candidate field since the March filing deadline.