# 1958 United States Senate election in Wisconsin

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vte :
The 1958 United States Senate election in Wisconsin was held on November 4, 1958. Incumbent Democrat William Proxmire, who had won a special election to finish the term of the late Senator Joe McCarthy, was re-elected to a full term in office over Wisconsin Supreme Court Justice Roland J. Steinle, a Republican.

## General election
### Candidates

* James E. Boulton (Socialist Workers)
* Georgia Cozzini, perennial candidate (Socialist Labor)
* William Proxmire, incumbent Senator (Democratic)
* Roland J. Steinle, Justice of the Wisconsin Supreme Court (Republican)

### Results

1958 United States Senate election in Wisconsin :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | William Proxmire (incumbent) | 682,440 | 57.13% | 0.69 |
| | Republican | Roland J. Steinle | 510,398 | 42.73% | 2.22 |
| | Socialist Workers | James E. Boulton | 1,226 | 0.10% | N/A |
| | Socialist Labor | Georgia Cozzini | 537 | 0.05% | 0.04 |
| Total votes | Total votes | Total votes | 1,194,601 | 100.00% | |
| | Democratic hold | Democratic hold | Swing | | |