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 County results Downey: 40–50% 50–60% 60–70% Bancroft: 40–50% 50–60% 70–80% | ||||||||||||||||||||
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| Elections in California |
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The 1938 United States Senate election in California was held on November 2, 1938. Incumbent Democratic Senator William Gibbs McAdoo ran for a second term, but was defeated by Sheridan Downey in the Democratic primary. Downey went on to defeat Philip Bancroft in the general election.