U.S. House, District 10 · California

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

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).

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.

Mark DeSaulnier: key votes as U.S. Representative

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

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