VecD 100 · AnchoredTenD >99%Att36
Mark Desaulnier is a Democratic candidate for U.S. House in CA-10 in the 2026 election and the incumbent.
American politician (born 1952)
Mark James DeSaulnier is an American politician who has served as a U.S. representative from California since 2015.
He has represented California's 10th congressional district since 2023, although it was previously numbered the 11th district for his first eight years in office. The district includes most of Contra Costa County, a suburban county in the East Bay. A member of the Democratic Party since 2000, he was previously a member of the Republican Party.
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As of 2026-09-30 · Source: FEC
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