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Tip the Scale Blue — election intelligence for 2026 progressives. Poll data from Ballotpedia. Ratings from Cook, Sabato, and Inside Elections.

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California 10th District · House

Mark DeSaulnier (D)vsJeffrey Frese (R)

Election Day · Nov 3, 2026

Score updated Aug 29, 2026

Read more on Ballotpedia

166MONITOR

Priority Score Breakdown

Candidates

Mark DeSaulnier

Democrat· Incumbent

Progressive votes: 97.84%

Donate Volunteer

Jeffrey Frese

Republican

War Chest (FEC)

DeSaulnier

$586k

Frese

—

Cash on hand, most recent FEC filing.

Expert Ratings

Cook PoliticalCookSafe D

California house — Score 166 | Tip the Scale Blue