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 County results Bunning: 50–60% 60–70% 70–80% Mongiardo: 50–60% 60–70% 70–80% 80–90% | |||||||||||||||||
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| Elections in Kentucky |
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 Government |
The 2004 United States Senate election in Kentucky took place on November 2, 2004, alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Republican U.S. Senator Jim Bunning narrowly won re-election to a second term over Democratic State Senator Daniel Mongiardo. This election was the first time since 1962 that an incumbent Republican senator won re-election to this seat.