# 1956 United States Senate election in Arizona

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The 1956 United States Senate election in Arizona took place on November 6, 1956. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a sixth term, defeating Republican nominee Attorney General of Arizona Ross F. Jones in the general election.

## Democratic primary
### Candidates

* Carl T. Hayden, incumbent U.S. Senator
* Robert E. Miller, candidate for U.S. Senate in 1938, 1940, 1950

### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Carl T. Hayden (incumbent) | 99,859 | 82.4% |
| | Democratic | Robert E. Miller | 21,370 | 17,6% |
| Total votes | Total votes | Total votes | 121,229 | 100.0 |

## Republican primary
### Candidates

* Ross F. Jones, Attorney General of Arizona
* Albert H. Mackenzie, attorney

### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Ross F. Jones | 31,246 | 79.3% |
| | Republican | Albert H. Mackenzie | 8,147 | 20.9% |
| Total votes | Total votes | Total votes | 39,393 | 100.0 |

## General election

United States Senate election in Arizona, 1956 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Carl T. Hayden (incumbent) | 170,816 | 61.39% | −1.41% |
| | Republican | Ross F. Jones | 107,447 | 38.61% | +1.41% |
| Majority | Majority | Majority | 63,369 | 22.77% | −2.84% |
| Turnout | Turnout | Turnout | 278,263 | | |
| | Democratic hold | Democratic hold | Swing | | |