# 1948 United States Senate election in Iowa

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vte :
The 1948 United States Senate election in Iowa took place on November 2, 1948. Incumbent Republican Senator George A. Wilson ran for re-election to a second term but was defeated by Democratic former Senator Guy Gillette.

## Republican primary
### Candidates

* John N. Calhoun, former State Senator from Keosauqua (1933–35) and National Guard Lieutenant Colonel in World War II
* George A. Wilson, incumbent Senator since 1943

### Results

1948 Republican U.S. Senate primary :
| Party | Party | Candidate | Votes | % |
| | Republican | George A. Wilson (incumbent) | 185,215 | 68.44% |
| | Republican | John N. Calhoun | 85,402 | 31.56% |
| Total votes | Total votes | Total votes | 270,617 | 100.00% |

## Democratic primary
### Candidates

* Guy Gillette, former U.S. Senator (1936–45)
* Ernest J. Seemann, perennial candidate

### Results

1948 Democratic U.S. Senate primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | Guy Gillette | 51,576 | 79.04% |
| | Democratic | Ernest Seemann | 13,680 | 20.96% |
| Total votes | Total votes | Total votes | 65,256 | 100.00% |

## General election
### Results

1948 U.S. Senate election in Iowa :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Guy Gillette | 578,226 | 57.80% | 16.10 |
| | Republican | George A. Wilson (incumbent) | 415,778 | 41.56% | 16.32 |
| | Progressive | Seymour Pitcher | 3,387 | 0.34% | N/A |
| | Prohibition | Z. Everett Kellum | 2,580 | 0.26% | 0.05 |
| | Socialist | Hugo Bockewitz | 441 | 0.04% | N/A |
| Total votes | Total votes | Total votes | 1,000,412 | 100.00% |