California 13th Congressional District 2024 Candidates. — nexstar media group, inc. California's 13th district race tightens as votes counted john duarte and adam gray face off again with votes nearly tied as election outcomes loom the race for california's.

The race in california’s 13th congressional district pits incumbent republican john duarte against democratic challenger adam gray after the pair emerged as the top two. That’s in california’s 13th district, where it looks as if democrat adam gray may defeat gop rep.