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United States · Election results history · 1978 Senate · Idaho
Election 1978 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.

1978 US Senate election in Idaho

James A. McClure (Republican) beat Dwight Jensen (Democrat) in Idaho in 1978, 68.4% to 31.6%, a margin of 36.9 points and 104,777 votes.

The Republican hold continued from 1972, when James A. McClure also won.

Republicans led in 44 of the 44 counties as they stood then. The largest, Ada, cast 56,267 votes and went to the Republican by 25.7 points. The closest was Camas, where 223 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
James A. McClure won Republican 194,412 68.4%
Dwight Jensen Democratic 89,635 31.6%
Total284,047

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 20,895 37.1% 35,372 62.9% 56,267 R+25.7
Canyon 8,410 35.9% 15,040 64.1% 23,450 R+28.3
Bannock 8,489 38.9% 13,310 61.1% 21,799 R+22.1
Bonneville 4,057 19.8% 16,440 80.2% 20,497 R+60.4
Kootenai 4,282 29.0% 10,466 71.0% 14,748 R+41.9
Twin Falls 3,466 23.6% 11,236 76.4% 14,702 R+52.8
Bingham 2,706 24.6% 8,312 75.4% 11,018 R+50.9
Nez Perce 4,565 44.2% 5,760 55.8% 10,325 R+11.6
Latah 3,633 38.2% 5,887 61.8% 9,520 R+23.7
Bonner 2,097 32.8% 4,302 67.2% 6,399 R+34.5
Cassia 1,196 22.3% 4,176 77.7% 5,372 R+55.5
Minidoka 1,401 26.1% 3,970 73.9% 5,371 R+47.8
Shoshone 1,659 31.9% 3,548 68.1% 5,207 R+36.3
Jefferson 915 18.0% 4,159 82.0% 5,074 R+63.9
Madison 550 10.9% 4,519 89.1% 5,069 R+78.3
Idaho 1,450 31.7% 3,119 68.3% 4,569 R+36.5
Payette 1,339 31.5% 2,909 68.5% 4,248 R+37.0
Jerome 962 22.7% 3,271 77.3% 4,233 R+54.5
Gem 1,693 41.5% 2,382 58.5% 4,075 R+16.9
Fremont 650 17.1% 3,141 82.9% 3,791 R+65.7
Elmore 1,547 41.5% 2,184 58.5% 3,731 R+17.1
Gooding 1,047 28.7% 2,596 71.3% 3,643 R+42.5
Franklin 944 28.6% 2,362 71.4% 3,306 R+42.9
Washington 1,252 38.3% 2,018 61.7% 3,270 R+23.4
Clearwater 1,175 42.1% 1,613 57.9% 2,788 R+15.7
Caribou 561 20.8% 2,130 79.2% 2,691 R+58.3
Blaine 837 32.3% 1,751 67.7% 2,588 R+35.3
Bear Lake 636 25.9% 1,822 74.1% 2,458 R+48.3
Lemhi 692 30.0% 1,611 70.0% 2,303 R+39.9
Benewah 715 31.4% 1,560 68.6% 2,275 R+37.1
Boundary 675 31.2% 1,486 68.8% 2,161 R+37.5
Power 610 28.9% 1,499 71.1% 2,109 R+42.2
Valley 817 40.2% 1,215 59.8% 2,032 R+19.6
Owyhee 619 31.6% 1,340 68.4% 1,959 R+36.8
Oneida 500 31.5% 1,089 68.5% 1,589 R+37.1
Lewis 532 36.8% 913 63.2% 1,445 R+26.4
Adams 507 38.1% 822 61.9% 1,329 R+23.7
Lincoln 315 26.6% 871 73.4% 1,186 R+46.9
Teton 173 14.7% 1,001 85.3% 1,174 R+70.5
Butte 289 25.0% 866 75.0% 1,155 R+50.0
Boise 385 33.8% 754 66.2% 1,139 R+32.4
Custer 228 20.1% 907 79.9% 1,135 R+59.8
Clark 67 15.6% 363 84.4% 430 R+68.8
Camas 97 23.3% 320 76.7% 417 R+53.5

Counties as they stood in 1978; 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.

Idaho Senate elections we hold

YearWinnerMargin
2022 Mike Crapo (R) R+31.9
2020 Jim Risch (R) R+29.4
2016 Mike Crapo (R) R+38.4
2014 James E. Risch (R) R+30.7
2010 Mike Crapo (R) R+46.2
2008 Jim Risch (R) R+23.5
2004 Mike Crapo (R) R+99.2
2002 Larry E. Craig (R) R+32.6
1998 Mike Crapo (R) R+41.1
1996 Larry E. Craig (R) R+17.1
1992 Dirk Kempthorne (R) R+13.0
1990 Larry E. Craig (R) R+22.6
1986 Steve Symms (R) R+3.1
1984 James A. McClure (R) R+46.2
1980 Steve Symms (R) R+1.0
1978 James A. McClure (R) R+36.9
1974 Frank Church (D) D+13.9
1972 James A. McClure (R) R+6.7
1968 Frank Church (D) D+20.5
1966 Len B. Jordan (R) R+10.8
1962 Frank Church (D) D+9.5
1960 Henry C. Dworshak (R) R+4.5
1956 Frank Church (D) D+17.5
1954 Henry C. Dworshak (R) R+25.7
1950 Herman Welker (R) R+23.4
1948 Bert C. Miller (D) D+1.5
1944 Glen H. Taylor (D) D+2.3
1942 John Thomas (R) R+3.1
1938 D. Worth Clark (D) D+9.8
1936 William E. Borah (R) R+26.7
1932 James Pope (D) D+13.4
1930 William E. Borah (R) R+44.8
1926 Frank R. Gooding (R) R+20.4
1924 William E. Borah (R) R+59.4
1920 Frank R. Gooding (R) R+8.2
1918 William E. Borah (R) R+34.4
1914 James H. Brady (R) R+5.7