1988 United States Senate election in Arizona
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The 1988 United States Senate election in Arizona took place on November 8, 1988. Incumbent Democratic U.S. Senator Dennis DeConcini was reelected to a third term, even as incumbent Republican Vice President George H. W Bush won the state for president on the same ballot. This was the last time until 2018 that Democrats won a U.S. Senate seat in Arizona.
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November 8, 1988
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 County results DeConcini: 40–50% 50–60% 60–70% 70–80% | |||||||||||||||||
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Major candidates
Democratic
- Dennis DeConcini, Incumbent U.S. Senator
Republican
- Keith DeGreen, Marine veteran and financial advisor
Results
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Dennis DeConcini (Incumbent) | 660,403 | 56.71% | −0.20% | |
| Republican | Keith DeGreen | 478,060 | 41.05% | +0.75% | |
| Libertarian | Rick Tompkins | 20,849 | 1.79% | −0.99% | |
| New Alliance | Ed Finkelstein | 5,195 | 0.45% | ||
| Write-in | 32 | 0.00% | |||
| Majority | 182,343 | 15.66% | −0.95% | ||
| Turnout | 1,164,539 | ||||
| Democratic hold | Swing | ||||