# 1952 United States Senate election in Montana

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The 1952 United States Senate election in Montana took place on November 4, 1952. Incumbent United States Senator Zales Ecton, who was first elected to the Senate in 1946, ran for re-election. Ecton won the Republican primary uncontested, and advanced to the general election, where he faced Mike Mansfield, the United States Congressman from Montana's 1st congressional district and the Democratic nominee. Following a close campaign, Mansfield narrowly defeated Ecton, winning his first of several terms in the Senate.

## Democratic primary
### Candidates

* Mike Mansfield, United States Congressman from Montana's 1st congressional district

### Results

Democratic Party primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Mansfield | 74,239 | 100.00 |
| Total votes | Total votes | Total votes | 74,239 | 100.00 |

## Republican primary
### Candidates

* Zales Ecton, incumbent United States Senator

### Results

Republican Primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Zales Ecton (incumbent) | 71,629 | 100.00 |
| Total votes | Total votes | Total votes | 71,629 | 100.00 |

## General election
### Results

United States Senate election in Montana, 1952 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Mike Mansfield | 133,109 | 50.75% | +5.37% |
| | Republican | Zales Ecton (incumbent) | 127,360 | 48.56% | −4.92% |
| | Progressive | Larry Price | 1,828 | 0.70% | |
| Majority | Majority | Majority | 5,749 | 2.19% | −5.90% |
| Turnout | Turnout | Turnout | 262,297 | | |
| | Democratic gain from Republican | Democratic gain from Republican | Swing | | |