# 1938 United States Senate election in Arizona

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The 1938 United States Senate elections in Arizona took place on November 3, 1938. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a third term, defeating Republican nominee Burt H. Clingan in the general election.
In contrast to previous elections, Hayden was easily reelected, receiving only token opposition from a relatively unknown Republican challenger.

## Democratic primary
### Candidates

* Carl T. Hayden, incumbent U.S. Senator
* Robert E. Miller
* Whit I. Hughes

### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Carl T. Hayden (incumbent) | 68,328 | 65.48% |
| | Democratic | Robert E. Miller | 22,154 | 21.23% |
| | Democratic | Whit I. Hughes | 13,867 | 13.29% |
| Total votes | Total votes | Total votes | 104,349 | 100.00 |

## Republican primary
### Candidates

* Burt H. Clingan, chairman of the Arizona Industrial Commission

## General election

United States Senate election in Arizona, 1938 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Carl T. Hayden (incumbent) | 82,714 | 76.52% | +9.85% |
| | Republican | Burt H. Clingan | 25,378 | 23.48% | −8.58% |
| Majority | Majority | Majority | 57,336 | 53.04% | +18.43% |
| Turnout | Turnout | Turnout | 108,092 | | |
| | Democratic hold | Democratic hold | Swing | | |