Idaho — 1986 U.S. Senate election
Recent presidential results
Akashicstate1986 Senate electionIdaho · U.S. SenateSymmsR+3.1
How it voted
Share of the 1986 vote
| Steve Symms (i) ✓Republican | 51.6% | 196,958 |
|---|---|---|
| John V. EvansDemocrat | 48.4% | 185,066 |
1986Senate margin
D+60R+60
44 counties, each filled by 1986 D-vs-R margin. Hover any county for its result.
County-level results (44 counties) — table
| County | Winner | Margin |
|---|---|---|
| ADA, ID | Republican | R+3.3 |
| ADAMS, ID | Republican | R+15.4 |
| BANNOCK, ID | Democratic | D+20.4 |
| BEAR LAKE, ID | Republican | R+27.5 |
| BENEWAH, ID | Democratic | D+8.7 |
| BINGHAM, ID | Republican | R+9.2 |
| BLAINE, ID | Democratic | D+16.5 |
| BOISE, ID | Republican | R+6.8 |
| BONNER, ID | Democratic | D+19.6 |
| BONNEVILLE, ID | Republican | R+23.4 |
| BOUNDARY, ID | Republican | R+4.5 |
| BUTTE, ID | Democratic | D+0.8 |
| CAMAS, ID | Republican | R+18.6 |
| CANYON, ID | Republican | R+15.3 |
| CARIBOU, ID | Republican | R+21.4 |
| CASSIA, ID | Republican | R+22.9 |
| CLARK, ID | Republican | R+35.3 |
| CLEARWATER, ID | Democratic | D+30.4 |
| CUSTER, ID | Republican | R+31.7 |
| ELMORE, ID | Republican | R+0.8 |
| FRANKLIN, ID | Republican | R+34.0 |
| FREMONT, ID | Republican | R+31.0 |
| GEM, ID | Democratic | D+8.6 |
| GOODING, ID | Republican | R+3.6 |
| IDAHO, ID | Republican | R+8.3 |
| JEFFERSON, ID | Republican | R+39.1 |
| JEROME, ID | Republican | R+7.4 |
| KOOTENAI, ID | Democratic | D+7.3 |
| LATAH, ID | Democratic | D+26.9 |
| LEMHI, ID | Republican | R+38.5 |
| LEWIS, ID | Democratic | D+20.6 |
| LINCOLN, ID | Democratic | D+1.5 |
| MADISON, ID | Republican | R+49.2 |
| MINIDOKA, ID | Republican | R+2.9 |
| NEZ PERCE, ID | Democratic | D+34.5 |
| ONEIDA, ID | Democratic | D+9.4 |
| OWYHEE, ID | Republican | R+26.6 |
| PAYETTE, ID | Republican | R+13.3 |
| POWER, ID | Democratic | D+7.4 |
| SHOSHONE, ID | Democratic | D+38.6 |
| TETON, ID | Republican | R+21.6 |
| TWIN FALLS, ID | Republican | R+8.8 |
| VALLEY, ID | Republican | R+11.2 |
| WASHINGTON, ID | Republican | R+9.8 |
presidential baselinePresident 1984R+46.0Senate 1986R+3.1vs. baselineD+42.9
Idaho's 1986 Senate race ran 42.9 points more Democratic than its 1984 presidential margin.
Idaho's Senate margins
Every comparable D–R contest in our store, 1978–2022
| Year | Margin (D minus R) |
|---|---|
| 1978 | −36.9% |
| 1980 | −1.0% |
| 1984 | −46.2% |
| 1986 | −3.1% |
| 1990 | −22.6% |
| 1992 | −13.0% |
| 1996 | −17.1% |
| 1998 | −41.1% |
| 2002 | −32.6% |
| 2004 | −100.0% |
| 2008 | −23.5% |
| 2010 | −46.3% |
| 2014 | −30.7% |
| 2016 | −38.4% |
| 2020 | −29.4% |
| 2022 | −31.9% |
Same ballot, 1986ID
Source. MIT Election Data + Science Lab — 1986 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.