1990 United States Senate election in Illinois
November 6, 1990
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| Turnout | 53.90% | ||||||||||||||||
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Simon: 50–60% 60–70% 70–80% 80–90% >90% Martin: 50–60% 60–70% 70–80% Tie: 50% No data | |||||||||||||||||
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| Elections in Illinois |
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The 1990 United States Senate election in Illinois was held on November 6, 1990. Incumbent Democratic U.S. Senator Paul Simon sought re-election to a second term in office. Simon was opposed by Republican nominee Lynn Morley Martin, a U.S. Congresswoman from Illinois's 16th congressional district, whom he easily defeated to win a second and final term in the Senate. Martin carried only two counties, Edwards and McHenry.
Primaries were held March 20, 1990.