| Elections in Arizona |
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The 1946 United States Senate elections in Arizona took place on November 5, 1946. Incumbent Democratic U.S. Senator Ernest McFarland ran for reelection to a second term, easily defeating his Republican challenger Ward S. Powers in the general election.
Democratic primary
Candidates
- Ernest McFarland, incumbent U.S. Senator
- Harry J. Valentine, Veterans' Service Officer
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Ernest McFarland (incumbent) | 61,287 | 79.5% | |
| Democratic | Harry J. Valentine | 15,818 | 20.5% | |
| Total votes | 77,105 | 100.0 | ||
Republican primary
Candidates
- Ward S. Powers
General election
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Ernest McFarland (incumbent) | 80,415 | 69.18% | -2.43% | |
| Republican | Ward S. Powers | 35,022 | 30.13% | +2.15% | |
| Communist | Morris Graham | 802 | 0.69% | ||
| Majority | 45,393 | 39.05% | -4.58% | ||
| Turnout | 116,239 | ||||
| Democratic hold | Swing | ||||
