| Elections 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. This would be the last victory by a Democrat in a Senate race in Arizona until Kyrsten Sinema's victory in the 2018 election to this same seat. Even as Incumbent Republican Vice President George H. W Bush won the state for president on the same ballot.
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-ins | 32 | 0.00% | |||
| Majority | 182,343 | 15.66% | 0.95% | ||
| Turnout | 1,164,539 | ||||
| Democratic hold | Swing | ||||
