2018 Wyoming gubernatorial election

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.

This was the only time since 1978 that a candidate from the President's party was elected governor of Wyoming.

Nominated

 * Mark Gordon, Wyoming State Treasurer

Declared

 * Bill Dahlin, businessman
 * Foster Friess, businessman and activist
 * Sam Galeotos, businessman
 * Harriet Hageman, attorney and former Liz Cheney campaign advisor
 * Taylor Haynes, physician, write-in candidate for governor in 2010 and candidate for governor in 2014

Withdrew

 * Rex Rammell, veterinarian and perennial candidate (running for Constitution Party nomination)

Nominated

 * Mary Throne, former Minority Leader of the Wyoming House of Representatives

Declared

 * Ken Casner, candidate for governor in 2002
 * Michael Allen Green, nominee for the U.S. House of Representatives in 2000
 * Rex Wilde, candidate for governor in 2010

Declined

 * James W. Byrd, state representative (running for secretary of state)
 * Ryan Greene, nominee for the U.S. House of Representatives in 2016 (running for Mayor of Rock Springs)
 * Chris Rothfuss, Minority Leader of the Wyoming Senate and nominee for U.S. Senate in 2008
 * Milward Simpson, director of the Wyoming Nature Conservancy
 * Gary Trauner, businessman and nominee for U.S. House of Representatives in 2006 and 2008 (running for U.S. Senate)

Declared

 * Rex Rammell, veterinarian and perennial candidate (Constitution)

Debates

 * Complete video of debate, October 6, 2018
 * Complete video of debate, October 18, 2018

Predictions

 * Notes

Counties that flipped from Republican to Democratic

 * Teton (Largest city: Jackson)