2020 United States Senate election in Wyoming

The 2020 United States Senate election in Wyoming was held on November 3, 2020, to elect a member of the United States Senate to represent the State of Wyoming, concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections. Cynthia Lummis defeated Democrat Merav Ben-David by more than 46 percentage points, becoming the first female U.S. Senator from Wyoming and succeeding fellow Republican Mike Enzi, who did not run for reelection. This was the first open Senate seat since 1996, when Enzi was first elected. The Democratic and Republican party primary elections were held on August 18, 2020. This was the first time since 1996 that Democrats won any county for this seat. Enzi died aged 77 on July 26, 2021, from injuries in a bicycle accident, less than seven months after his retirement from the Senate.

Cynthia Lummis won the election with 72.85% of the popular vote, winning 2.91% more than President Donald Trump had won in the concurrent presidential election in the state.

Nominee

 * Cynthia Lummis, former U.S. representative for Wyoming's at-large congressional district and former Treasurer of Wyoming

Eliminated in primary

 * R. Mark Armstrong, geologist
 * Devon Cade, businessman
 * John Holtz, attorney and U.S. Air Force veteran
 * Michael Kemler
 * Bryan Miller, candidate for U.S. Senate in 2014
 * Donna Rice, estate lawyer
 * Star Roselli, conspiracy theorist
 * Robert Short, Converse County commissioner and businessman
 * Joshua Wheeler, Wyoming Army National Guard veteran

Withdrawn

 * Patrick Dotson, retiree
 * Rolland Holthus

Declined

 * Liz Cheney, incumbent U.S. representative for Wyoming's at-large congressional district, Chair of House Republican Conference, and daughter of the 46th Vice President Dick Cheney (running for re-election)
 * Mike Enzi, incumbent U.S. senator (endorsed Cynthia Lummis)
 * Foster Friess, businessman and former governor candidate
 * Robert Grady, policy adviser to former president George H. W. Bush
 * Matt Mead, former governor of Wyoming
 * Donald Trump Jr., businessman and son of President of the United States Donald Trump

Results
[[File:Wyoming U.S. Senate Republican primary, 2020.svg|thumb|Results by county: {{legend|#E27F7F|Lummis}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}

{{legend|#C21B18|80–90%}} {{legend|#FF9A50|Short}}

{{legend|#FF9A50|50–60%}} ]]

Nominee

 * Merav Ben-David, Chair of the Department of Zoology and Physiology at the University of Wyoming and wildlife ecologist

Eliminated in primary

 * Kenneth R. Casner, Democratic candidate for the 2018 Wyoming gubernatorial election and Democratic nominee for District 47 of the Wyoming House of Representatives in 2016
 * James DeBrine, progressive activist
 * Yana Ludwig, democratic socialist activist and community organizer
 * Nathan Wendt, think tank executive, management consultant, businessman, entrepreneur
 * Rex Wilde, veteran, service technician, Democratic candidate for the 2018 Wyoming gubernatorial election and Democratic candidate for the 2014 United States Senate election in Wyoming

Withdrawn

 * Chuck Jagoda, teacher

Results
[[File:Wyoming U.S. Senate Democratic primary, 2020.svg|thumb|Results by county: {{legend|#7996E2|Ben-David}}

{{legend|#BDD3FF|30–40%}}

{{legend|#A5B0FF|40–50%}}

{{legend|#7996E2|50–60%}} ]]

Results
Lummis outperformed fellow Republican Donald Trump in the concurrent presidential election by 2.9%, or 4,541 votes. She also won Albany County by 1%, or 182 raw votes, while Trump lost it by 2.7%, or 513 votes. She performed significantly better in the Democratic stronghold of Teton County, receiving 37.3% of the total vote, compared to Trump's 29.6%.


 * Counties that flipped from Republican to Democratic
 * Teton (largest municipality: Jackson)