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United States · Election results history · 1970 Senate · Montana
Election 1970 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

1970 US Senate election in Montana

Mike Mansfield (Democrat) beat Harold E. Wallace (Republican) in Montana in 1970, 60.5% to 39.5%, a margin of 21.1 points and 52,251 votes.

The Democratic hold continued from 1964, when Mike Mansfield also won.

Democrats led in 50 of the 56 counties as they stood then and Republicans in 6. The largest, Yellowstone, cast 28,944 votes and went to the Democrat by 13.5 points. The closest was Madison, where 17 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Senate

CandidatePartyVotesShare
Mike Mansfield won Democratic 150,060 60.5%
Harold E. Wallace Republican 97,809 39.5%
Total247,869

Every county

CountyDemocratRepublicanOthersTotalMargin
Yellowstone 16,427 56.8% 12,517 43.2% 28,944 D+13.5
Cascade 16,981 71.2% 6,866 28.8% 23,847 D+42.4
Missoula 11,857 60.2% 7,827 39.8% 19,684 D+20.5
Silver Bow 12,281 72.2% 4,734 27.8% 17,015 D+44.4
Flathead 6,694 50.5% 6,568 49.5% 13,262 D+1.0
Lewis And Clark 8,297 64.8% 4,500 35.2% 12,797 D+29.7
Gallatin 5,981 56.7% 4,564 43.3% 10,545 D+13.4
Hill 4,099 68.8% 1,863 31.2% 5,962 D+37.5
Ravalli 2,800 49.5% 2,859 50.5% 5,659 R+1.0
Deer Lodge 4,051 74.2% 1,408 25.8% 5,459 D+48.4
Fergus 2,822 51.9% 2,614 48.1% 5,436 D+3.8
Lake 2,526 47.9% 2,751 52.1% 5,277 R+4.3
Park 2,348 50.5% 2,303 49.5% 4,651 D+1.0
Lincoln 2,608 58.3% 1,866 41.7% 4,474 D+16.6
Custer 2,998 68.1% 1,402 31.9% 4,400 D+36.3
Dawson 2,639 62.8% 1,563 37.2% 4,202 D+25.6
Valley 2,784 66.8% 1,382 33.2% 4,166 D+33.7
Carbon 2,082 59.3% 1,430 40.7% 3,512 D+18.6
Roosevelt 2,276 65.5% 1,200 34.5% 3,476 D+31.0
Richland 2,156 62.1% 1,314 37.9% 3,470 D+24.3
Glacier 2,053 61.6% 1,279 38.4% 3,332 D+23.2
Big Horn 1,780 57.7% 1,306 42.3% 3,086 D+15.4
Chouteau 1,766 59.5% 1,201 40.5% 2,967 D+19.0
Teton 1,726 58.8% 1,207 41.2% 2,933 D+17.7
Sanders 1,502 54.9% 1,234 45.1% 2,736 D+9.8
Beaverhead 1,414 51.9% 1,311 48.1% 2,725 D+3.8
Pondera 1,713 63.8% 970 36.2% 2,683 D+27.7
Powell 1,645 63.6% 941 36.4% 2,586 D+27.2
Blaine 1,623 65.3% 862 34.7% 2,485 D+30.6
Sheridan 1,745 70.4% 735 29.6% 2,480 D+40.7
Phillips 1,524 62.0% 936 38.0% 2,460 D+23.9
Toole 1,296 52.7% 1,163 47.3% 2,459 D+5.4
Madison 1,140 50.4% 1,123 49.6% 2,263 D+0.8
Stillwater 1,066 52.6% 962 47.4% 2,028 D+5.1
Rosebud 1,166 59.0% 811 41.0% 1,977 D+18.0
Musselshell 1,059 58.9% 739 41.1% 1,798 D+17.8
Jefferson 1,003 60.0% 669 40.0% 1,672 D+20.0
Fallon 790 52.7% 709 47.3% 1,499 D+5.4
Judith Basin 889 61.4% 560 38.6% 1,449 D+22.7
Daniels 814 56.3% 632 43.7% 1,446 D+12.6
Sweet Grass 546 38.7% 864 61.3% 1,410 R+22.6
McCone 775 59.6% 525 40.4% 1,300 D+19.2
Wheatland 732 57.8% 535 42.2% 1,267 D+15.5
Broadwater 595 52.2% 544 47.8% 1,139 D+4.5
Mineral 650 60.0% 433 40.0% 1,083 D+20.0
Liberty 566 54.7% 468 45.3% 1,034 D+9.5
Powder River 436 42.3% 595 57.7% 1,031 R+15.4
Granite 525 51.9% 486 48.1% 1,011 D+3.9
Carter 486 54.5% 406 45.5% 892 D+9.0
Prairie 490 56.5% 378 43.5% 868 D+12.9
Garfield 371 47.0% 419 53.0% 790 R+6.1
Meagher 356 45.9% 419 54.1% 775 R+8.1
Wibaux 402 64.2% 224 35.8% 626 D+28.4
Treasure 278 51.6% 261 48.4% 539 D+3.2
Golden Valley 270 52.9% 240 47.1% 510 D+5.9
Petroleum 161 55.1% 131 44.9% 292 D+10.3

Counties as they stood in 1970; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Montana Senate elections we hold

YearWinnerMargin
2024 Tim Sheehy (R) R+7.1
2020 Steve Daines (R) R+10.0
2018 Jon Tester (D) D+3.6
2014 Steve Daines (R) R+17.7
2012 Jon Tester (D) D+3.7
2008 Max Baucus (D) D+45.8
2006 Jon Tester (D) D+0.9
2002 Max Baucus (D) D+31.0
2000 Conrad Burns (R) R+3.3
1996 Max Baucus (D) D+4.9
1994 Conrad R. Burns (R) R+24.7
1990 Max Baucus (D) D+38.7
1988 Conrad Burns (R) R+3.7
1984 Max Baucus (D) D+16.2
1982 John Melcher (D) D+12.8
1978 Max Baucus (D) D+11.4
1976 John Melcher (D) D+28.3
1972 Lee Metcalf (D) D+3.9
1970 Mike Mansfield (D) D+21.1
1966 Lee Metcalf (D) D+6.3
1964 Mike Mansfield (D) D+29.0
1960 Lee Metcalf (D) D+1.5
1958 Mike Mansfield (D) D+52.4
1954 James E. Murray (D) D+0.8
1952 Mike Mansfield (D) D+2.2
1948 James E. Murray (D) D+13.9
1946 Zales N. Ecton (R) R+8.1
1942 James E. Murray (D) D+0.7
1940 Burton K. Wheeler (D) D+46.9
1936 James E. Murray (D) D+27.9
1934 Burton K. Wheeler (D) D+41.4
1930 Thomas J. Walsh (D) D+22.5
1928 Burton K. Wheeler (D) D+6.4
1924 Thomas J. Walsh (D) D+10.4
1922 Burton K. Wheeler (D) D+11.8
1918 Thomas J. Walsh (D) D+5.3
1916 Henry L. Myers (D) D+7.7