# 1948 United States Senate election in South Dakota

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The 1948 United States Senate election in South Dakota took place on November 2, 1948. Incumbent Republican Senator Harlan J. Bushfield, suffering from poor health, declined to run for re-election. On September 27, 1948, he died in office; his wife, Vera C. Bushfield, was appointed to succeed him. Congressman Karl E. Mundt easily won the Republican primary and advanced to the general election, where he was opposed by Democratic nominee John A. Engel, an attorney. Hundt defeated Engel in a landslide.

## Democratic primary

John A. Engel, an attorney from Avon, was the only Democratic candidate to file for the U.S. Senate and he won the nomination unopposed, thereby removing it from the primary election ballot.

## Republican primary
### Candidates

* Karl E. Mundt, U.S. Congressman from South Dakota's 1st congressional district
* Otto B. Lindstad, State Senator, former Assistant State Attorney General

### Results

Republican primary :
| Party | Party | Candidate | Votes | % |
| | Republican | Karl E. Mundt | 65,595 | 84.51% |
| | Republican | Otto B. Lindstad | 12,022 | 15.49% |
| Total votes | Total votes | Total votes | 77,617 | 100.00% |

## General election
### Results

1948 United States Senate election in South Dakota :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Karl E. Mundt | 144,084 | 59.33% | +0.59% |
| | Democratic | John A. Engel | 98,749 | 40.67% | −0.59% |
| Majority | Majority | Majority | 45,335 | 18.67% | +1.19% |
| Turnout | Turnout | Turnout | 242,833 | 100.00% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |