U.S. House, District 10 · California

Incumbent: Mark DeSaulnier (Democratic) · Incumbent running
General election Tuesday, Nov 3, 2026

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The candidates

Candidates as certified by the California Secretary of State (Aug. 27, 2026). California uses a top-two primary: the two leading vote-getters in the June 2, 2026 primary advance regardless of party. June 2 primary (official Statement of Vote, 221,581 votes): Mark DeSaulnier (Democratic) 59.7% · Jeff Frese (Republican) 12.9% · Katherine Piccinini (Republican) 11.5% · Angela Griffiths (Republican) 6.7% and others. Districts follow the new congressional map approved by voters in Proposition 50 (Nov. 2025).

Mark DeSaulnier

Democratic · Incumbent

Ballot designation on the Nov 3, 2026 ballot: “United States Congressman” (as filed with the California Secretary of State).

Background via official source

Jeff Frese

Republican

Ballot designation on the Nov 3, 2026 ballot: “Small Business Owner” (as filed with the California Secretary of State).

Background via official source

Candidates checked against the official list: state election office source. Candidate list compiled from the official state election office source and the sources on each profile. Check your official sample ballot before voting.

Where they stand

We haven’t yet found sourced positions from both candidates on the same topic, so no side-by-side comparison is shown. Each candidate’s own words are on their profile: Mark DeSaulnier · Jeff Frese.

Know something we’re missing? Tell us: [email protected]. Please include a link to the source (official site, questionnaire, debate or news report). We add positions only with a source and treat every candidate the same way.

Official voting records

The same nine Senate votes (or three House votes) are shown for every current member of Congress running, so records can be compared across races. Click a roll call for the official tally.

Mark DeSaulnier: key votes as U.S. Representative

MeasureDeSaulnier
Laken Riley Act (S. 5) — final House passageNay
One Big Beautiful Bill Act (H.R. 1) — House passageNay
One Big Beautiful Bill Act (H.R. 1) — final, concur in Senate versionNo

Pulled from official roll-call records · Congress.gov profile & full record.

No congressional voting record for: Jeff Frese. State legislative or local records are not yet compiled.