# 1948 United States Senate election in Montana

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The 1948 United States Senate election in Montana took place on November 2, 1948. Incumbent United States Senator James E. Murray, who was first elected to the Senate in a special election in 1934 and was re-elected in 1936 and 1942, ran for re-election. After winning the Democratic primary, he faced Tom J. Davis, an attorney and the Republican nominee, in the general election. Following a narrow re-election in 1936, Murray significantly expanded his margin of victory and comfortably won re-election over Davis, resulting in him winning his fourth term and his third full term in the Senate.

## Democratic primary
### Candidates

* James E. Murray, incumbent United States Senator
* Harry J. McGregor

### Results

Democratic Party primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | James E. Murray (incumbent) | 62,658 | 81.63% |
| | Democratic | Harry J. McGregor | 14,104 | 18.37% |
| Total votes | Total votes | Total votes | 76,762 | 100.00% |

## Republican primary
### Candidates

* Tom J. Davis, attorney, former President of Rotary International
* Wellington D. Rankin, former United States Attorney for the District of Montana, former Attorney General of Montana

### Results

Republican Primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom J. Davis | 31,897 | 55.98% |
| | Republican | Wellington D. Rankin | 25,083 | 44.02% |
| Total votes | Total votes | Total votes | 56,980 | 100.00% |

## General election
### Results

United States Senate election in Montana, 1948 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | James E. Murray (incumbent) | 125,193 | 56.65% | +7.58% |
| | Republican | Tom S. Davis | 94,458 | 42.74% | −5.62% |
| | Prohibition | C. S. Hanna | 1,352 | 0.61% | |
| Majority | Majority | Majority | 30,735 | 13.91% | +13.20% |
| Turnout | Turnout | Turnout | 221,003 | | |
| | Democratic hold | Democratic hold | Swing | | |