1940 Washington gubernatorial election
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| County results Langlie: 50–60% 60–70% 70-80% Dill: 50–60% 60–70% | |||||||||||||||||
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| Elections in Washington (state) | 
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The 1940 Washington gubernatorial election was held on November 5, 1940. Republican nominee Arthur B. Langlie narrowly defeated Democratic nominee Clarence Dill with 50.24% of the vote. Langlie's 0.74% margin of victory is the third-closest in state history. This is the only gubernatorial election in Washington in which King County has voted for the losing candidate.