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   Cantwell: 50–60% 60–70% 70–80% 80–90% >90% Hutchison: 50–60% 60–70% 70–80% 80–90% >90% Tie: 50% No votes | |||||||||||||||||
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| Elections in Washington |
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The 2018 United States Senate election in Washington took place on November 6, 2018, to elect a member of the United States Senate to represent the State of Washington. Incumbent Democrat Maria Cantwell won election to a fourth term over television news journalist Susan Hutchison, a Republican.