The Race
Incumbent Democrat Raul Ruiz faces Republican challenger Joe Males in a November 3 showdown for California's 25th U.S. House District. Ruiz dominated the June 2 primary with 88,699 votes to Males' 27,927, a commanding 3-to-1 margin that set the stage for the general election.
Ratings
Cook Political Report, Inside Elections, and Sabato's Crystal Ball all agree on one thing: this district leans Democratic. The race carries a "Solid Democratic" rating, which in plain English means Republicans face a steep climb. The incumbent advantage, combined with the district's built-in Democratic lean, makes this one of the safer seats for the majority party heading into the fall.
Prediction Markets
Prediction markets tell a similar story. As of June 29, betting odds on Kalshi and Polymarket gave Democrats an 88.52% probability of victory, while Republicans sat at 11.48%. That's a decisive spread: nearly nine in 10 odds favoring Ruiz's reelection.
Experts vs. Markets
Prediction markets and polls show remarkable alignment. The "Solid Democratic" rating and the 88.52% betting odds are singing the same tune. Both suggest Ruiz is heavily favored, with Males facing long odds. The consensus across traditional midterm race ratings and Kalshi Polymarket odds points to a Democratic hold with high confidence.
What explains this harmony? Ruiz's primary performance (capturing 60% of votes cast in a three-candidate field) signals strong grassroots support. Meanwhile, outside spending totaled just $4,938.29 as of mid-June, with most of it ($4,551.51) opposing Ruiz. That modest outside intervention hasn't moved the needle enough to shift either the expert consensus or the betting markets.
Ruiz enters the general election with nearly everything working in his favor.
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