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 County results Nickles: 40-50% 50-60% 60-70% 70-80% 80-90% Carroll: 50–60% | |||||||||||||||||
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| Elections in Oklahoma |
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 Government |
The 1998 United States Senate election in Oklahoma was held November 3, 1998. Incumbent Republican U.S. Senator Don Nickles won re-election to his fourth and final term. Nickles won in a landslide, carrying all but one of the 77 counties in the state. The sole county Democratic candidate Don Carroll won was Haskell County.