2018 Wyoming gubernatorial election
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The 2018 Wyoming gubernatorial election took place on November 6, 2018, to elect the governor of Wyoming. Incumbent Republican governor Matt Mead was term-limited and could not seek a third consecutive term. Republican nominee Mark Gordon defeated Democratic nominee Mary Throne by nearly 40 percentage points.[1]
November 6, 2018
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| Turnout | 73.45% registered 41.16% of total population | ||||||||||||||||
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Gordon: 40–50% 50–60% 60–70% 70–80% 80–90% >90% Throne: 40–50% 50–60% 60–70% 70–80% No votes | |||||||||||||||||
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This was the only time since 1978 that a candidate from the president's party was elected governor of Wyoming.
Republican primary
Candidates
Nominated
- Mark Gordon, Wyoming state treasurer[2][3][4]
Declared
- Bill Dahlin, businessman[5][6]
- Foster Friess, businessman and activist[7]
- Sam Galeotos, businessman[8]
- Harriet Hageman, attorney and former Liz Cheney campaign advisor[9]
- Taylor Haynes, physician, write-in candidate for governor in 2010 and candidate for governor in 2014[10][11]
Withdrew
- Rex Rammell, veterinarian and perennial candidate (ran for Constitution Party nomination)[12][13]
Endorsements
Federal officials
- Rand Paul, U.S. senator (R-KY)[14]
- Rick Santorum, former U.S. senator (R-PA)[15]
- Donald Trump, 45th president of the United States (2017–2021)[16]
State legislators
- Mark Baker, former state representative[17]
Individuals
- Kimberly Guilfoyle, television news personality[18]
- Kyle Kashuv, school safety activist[19]
- Charlie Kirk, founder and president of Turning Point USA[20]
- Chuck Norris, martial artist, actor, film producer and screenwriter[21]
- Donald Trump Jr., businessman and son of President Donald Trump[22]
Organizations
- Family Research Council[23]
- Tea Party Patriots[24]
- Wyoming Right to Life[25]
Federal elected officials
- Cynthia Lummis, former U.S. representative (R-WY)[26]
State legislators
- Amy Edmonds, former state representative[26]
- Affie Ellis, state senator[26]
Individuals
- Ray Hunkins, Republican nominee for governor in 2006
Federal elected officials
- Alan Simpson, former U.S. senator (R-WY)[26]
State elected officials
- Cynthia Cloud, state auditor[27]
- Max Maxfield, former secretary of state of Wyoming and former state auditor[28]
- Diana Ohman, former secretary of state of Wyoming and former state superintendent of Public Instruction[27]
State legislators
- Jim Anderson, state senator[27]
- Rex Arney, former state representative[27]
- Eric Barlow, state representative[27]
- Rosie Berger, former majority leader of the Wyoming House of Representatives[27]
- Gregg Blikre, former state representative[27]
- Landon Brown, state representative[27]
- Donald Burkhart, speaker pro tempore of the Wyoming House of Representatives[27]
- Bruce Burns, state senator[27]
- Johnnie Burton, former state representative[27]
- Cale Case, state senator[27]
- Aaron Clausen, state representative[27]
- Hank Coe, state senator[27]
- Stan Cooper, former state senator[27]
- Jamie Flitner, state representative[27]
- Mike Greear, state representative[27]
- Elaine Harvey, former state representative[27]
- Jerry Iekel, former state representative[27]
- Pete Illoway, former state representative[28]
- Wayne Johnson, former state senator[27]
- Dan Kirkbride, state representative[27]
- Lloyd Larsen, state representative[27]
- Grant Larson, former state representative[27]
- Clarene Law, former state representative[28]
- Tyler Lindholm, state representative[29]
- Tom Lubnau, former speaker of the Wyoming House of Representatives[27]
- Mike Madden, state representative[27]
- Larry Meuli, former state representative[27]
- Frank Moore, former state representative[28]
- Bob Nicholas, state representative[27]
- David Northrup, state representative[27]
- Jerry Obermueller, state representative[27]
- Doug Osborne, former state representative[27]
- Ruth Petroff, former state representative[28]
- Doug Samuelson, former state representative[27]
- Nels J. Smith, former speaker of the Wyoming House of Representatives[27]
- Clark Stith, state representative[27]
- Dan Sullivan, former state senator[27]
- Pat Sweeney, state representative[27]
- Michael Von Flatern, state senator[27]
- Tom Walters, state representative[27]
- Peter Wold, former state representative[27]
- Dan Zwonitzer, state representative[27]
- David Zwonitzer, former state representative[27]
Individuals
- Susan Thomas, wife of late Senator Craig Thomas (R-WY)[28]
- Isabel Wallop, wife of late Senator Malcolm Wallop (R-WY)[28]
Organizations
State legislators
- Scott Clem, state representative[31]
- Mark Jennings, state representative[32]
- Charles Scott, state senator[33]
- Cheri Steinmetz, state representative[34]
Polling
| Poll source | Date(s) administered |
Sample size |
Margin of error |
Foster Friess |
Sam Galeotos |
Mark Gordon |
Harriet Hageman |
Taylor Haynes |
Other | Undecided |
|---|---|---|---|---|---|---|---|---|---|---|
| University of Wyoming[35] | August 17–19, 2018 | 357 | – | 20% | 10% | 26% | 18% | 9% | 1%[36] | 15% |
| The Trafalgar Group (R)[37] | August 11–14, 2018 | 1,775 | ± 2.4% | 21% | 10% | 20% | 16% | 6% | 8%[38] | 20% |
| University of Wyoming[39] | June 18–20, 2018 | 596 | ± 4.0% | 6% | 14% | 19% | 11% | 10% | 1%[36] | 35% |
Results

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Mark Gordon | 38,951 | 33.0 | |
| Republican | Foster Friess | 29,842 | 25.3 | |
| Republican | Harriet Hageman | 25,052 | 21.2 | |
| Republican | Sam Galeotos | 14,554 | 12.3 | |
| Republican | Taylor Haynes | 6,511 | 5.5 | |
| Republican | Bill Dahlin | 1,763 | 1.5 | |
| n/a | Under votes | 1,269 | 1.1 | |
| Republican | Write-ins | 113 | 0.0 | |
| n/a | Over votes | 46 | 0.0 | |
| Total votes | 118,101 | 100.0 | ||
Democratic primary
Candidates
Nominated
- Mary Throne, former minority leader of the Wyoming House of Representatives[10][41][42]
Declared
Declined
- James W. Byrd, state representative (ran for secretary of state)[44]
- Ryan Greene, nominee for the U.S. House of Representatives in 2016 (ran for mayor of Rock Springs)[10][45][3][46]
- Chris Rothfuss, minority leader of the Wyoming Senate and nominee for U.S. Senate in 2008[10][3]
- Milward Simpson, director of the Wyoming Nature Conservancy[10]
- Gary Trauner, businessman and nominee for U.S. House of Representatives in 2006 and 2008 (ran for U.S. Senate)[47]
Endorsements
Federal executive officers
- Julian Castro, former United States Secretary of Housing and Urban Development and former mayor of San Antonio, Texas[48]
State executive officers
- Kathy Karpan, former Wyoming Secretary of State, 1994 Democratic nominee for Governor, and 1996 Democratic nominee for U.S. Senate[49]
State legislators
- Mike Gierau, state representative[50]
- Chris Rothfuss, minority leader of the Wyoming Senate[51]
- Andy Schwartz, state representative[50]
Individuals
- Mickey Babcock, Wyoming activist and founder/director of the Equipoise Fund[50]
- Ryan Greene, author, businessman, and nominee for the U.S. House of Representatives in 2016[51]
Organizations
Newspapers
Results

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Mary Throne | 12,948 | 66.5 | |
| Democratic | Michael Green | 2,391 | 12.3 | |
| n/a | Under votes | 1,385 | 7.1 | |
| Democratic | Kenneth Casner | 1,213 | 6.2 | |
| Democratic | Rex Wilde | 1,201 | 6.2 | |
| Democratic | Write-ins | 323 | 1.7 | |
| n/a | Over votes | 13 | 0.0 | |
| Total votes | 19,474 | 100.0 | ||
Independents and third parties
Candidates
Declared
- Rex Rammell, veterinarian and perennial candidate (Constitution)[13]
General election
Debates
- Complete video of debate, October 6, 2018
- Complete video of debate, October 18, 2018
Predictions
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[55] | Safe R | October 26, 2018 |
| The Washington Post[56] | Safe R | November 5, 2018 |
| FiveThirtyEight[57] | Safe R | November 5, 2018 |
| Rothenberg Political Report[58] | Safe R | November 1, 2018 |
| Sabato's Crystal Ball[59] | Safe R | November 5, 2018 |
| RealClearPolitics[60] | Safe R | November 4, 2018 |
| Daily Kos[61] | Safe R | November 5, 2018 |
| Fox News[62][a] | Likely R | November 5, 2018 |
| Politico[63] | Safe R | November 5, 2018 |
| Governing[64] | Safe R | November 5, 2018 |
- Notes
- The Fox News Midterm Power Rankings uniquely does not contain a category for Safe/Solid races
Polling
| Poll source | Date(s) administered |
Sample size |
Margin of error |
Mark Gordon (R) |
Mary Throne (D) |
Rex Rammell (C) |
Lawrence Struempf (L) |
Undecided |
|---|---|---|---|---|---|---|---|---|
| Change Research[65] | November 2–4, 2018 | 858 | – | 61% | 27% | 6% | 4% | – |
Results

| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Mark Gordon | 136,412 | 67.12% | +7.73% | |
| Democratic | Mary Throne | 55,965 | 27.54% | +0.29% | |
| Constitution | Rex Rammell | 6,751 | 3.32% | N/A | |
| Libertarian | Lawrence Struempf | 3,010 | 1.48% | −0.93% | |
| Write-in | 1,100 | 0.54% | -4.52% | ||
| Total votes | 203,238 | 100.00% | N/A | ||
| Republican hold | |||||
By county
| Mark Gordon Republican |
Mary Throne Democrat |
All Others | ||||
|---|---|---|---|---|---|---|
| County | Votes | % | Votes | % | Votes | % |
| Albany | 6,494 | 45.1% | 7,137 | 49.5% | 780 | 5.4% |
| Big Horn | 3,391 | 78.6% | 608 | 14.1% | 315 | 7.3% |
| Campbell | 10,398 | 79.9% | 1,856 | 14.3% | 756 | 5.8% |
| Carbon | 3,560 | 68.9% | 1,314 | 25.4% | 292 | 5.7% |
| Converse | 3,872 | 78.4% | 757 | 15.3% | 310 | 6.2% |
| Crook | 2,575 | 83.4% | 358 | 11.6% | 155 | 5.0% |
| Fremont | 9,251 | 64.4% | 4,299 | 29.9% | 808 | 5.6% |
| Goshen | 3,568 | 74.3% | 957 | 19.9% | 280 | 5.8% |
| Hot Springs | 1,682 | 74.7% | 443 | 19.7% | 126 | 5.6% |
| Johnson | 3,245 | 83.6% | 478 | 12.3% | 158 | 4.1% |
| Laramie | 20,052 | 61.3% | 11,196 | 34.2% | 1,454 | 4.4% |
| Lincoln | 5,511 | 76.8% | 1,155 | 16.1% | 506 | 7.1% |
| Natrona | 16,866 | 68.9% | 6,352 | 25.9% | 1,262 | 5.2% |
| Niobrara | 918 | 79.1% | 153 | 13.2% | 89 | 7.8% |
| Park | 8,815 | 74.6% | 2,277 | 19.3% | 717 | 6.1% |
| Platte | 2,644 | 70.0% | 845 | 22.4% | 287 | 7.7% |
| Sheridan | 8,727 | 73.9% | 2,667 | 22.6% | 420 | 3.6% |
| Sublette | 2,664 | 78.3% | 602 | 17.7% | 136 | 4.0% |
| Sweetwater | 8,375 | 64.8% | 3,758 | 29.1% | 800 | 6.2% |
| Teton | 4,736 | 40.5% | 6,541 | 56.0% | 411 | 3.6% |
| Uinta | 4,547 | 72.6% | 1,296 | 20.7% | 420 | 6.7% |
| Washakie | 2,396 | 77.0% | 568 | 18.3% | 148 | 4.8% |
| Weston | 2,125 | 78.6% | 348 | 12.9% | 231 | 8.6% |
Counties that flipped from Republican to Democratic