California threatens to worsen House Democrats' 2027 headaches

More than half a dozen U.S. House districts in California will send a Democrat to Capitol Hill next year no matter what. Party leadership still has a lot riding on the outcome.Why it matters: Most of these Democrat vs. Democrat runoffs — a quirk of California's election system — are between an establishment candidate and an outsider vowing to make leadership's life hell.Democratic Reps. Mike Thompson, Doris Matsui and Jimmy Gomez are all facing well-funded challenges from younger, less establishment-aligned Democrats.There are also several Northern California races that feature a pro-leadershi