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2026 candidates we're tracking in CA-18
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Chris Demers
Chris Demers is an independent candidate for U.S. House in CA-18. He previously served as an officer with the U.S. Agency for International Development, reforming democracies and protecting human rights. More recently, he advanced sustainability in tech compan…
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Luis Arreguín
Democratic
Luis Arreguín is a Democratic candidate certified by the California Secretary of State for the June 2, 2026 U.S. House - CA-18 primary ballot. The certified ballot designation lists Community College Professor.
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Shane Lewis
Republican
Shane Lewis is a Republican candidate certified by the California Secretary of State for the June 2, 2026 U.S. House - CA-18 primary ballot. The certified ballot designation lists Engineer/Failure Analyst.
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Zoe Lofgren
Democratic
Zoe Lofgren is a Democratic candidate certified by the California Secretary of State for the June 2, 2026 U.S. House - CA-18 primary ballot. The certified ballot designation lists Congresswoman.
About this race
California's 18th Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The California primary is Tuesday, June 2, 2026, and the general election is Tuesday, November 3, 2026.