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 County results Coburn: 40–50% 50–60% 60–70% 70–80% Carson: 40–50% 50–60% | |||||||||||||||||||||
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| Elections in Oklahoma |
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 Government |
The 2004 United States Senate election in Oklahoma took place on November 2, 2004. The election was concurrent with elections to the United States House of Representatives and the presidential election. Incumbent Senator Don Nickles decided to retire instead of seeking a fifth term. Fellow Republican Tom Coburn won the open seat.