1920 United States Senate election in Illinois
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Results by county McKinley: 40–50% 50–60% 60–70% 70–80% 80–90% Waller: 40–50% 50–60% | |||||||||||||||||
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| Elections in Illinois |
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The 1920 United States Senate election in Illinois took place on November 2, 1920.
Incumbent Republican senator Lawrence Yates Sherman opted to retire rather than seeking reelection. Fellow Republican William B. McKinley was elected to succeed him in office.