Mark Baisley

Mark Baisley
Baisley in 2024
Member of the Colorado Senate
from the 4th district
Incumbent
Assumed office
January 9, 2023
Preceded byJim Smallwood
Member of the Colorado House of Representatives
from the 39th district
In office
January 4, 2019 – January 9, 2023
Preceded byPolly Lawrence
Succeeded byBrandi Bradley
Personal details
Born (1955-08-02) August 2, 1955
Hastings, Minnesota, U.S.
PartyRepublican
SpouseMaryann
EducationColumbia College, Missouri (BS)
University of Colorado, Colorado Springs (attended)
WebsiteCampaign website

Mark Baisley (born 1955)[1] is an American politician who is a state senator from Roxborough Park, Colorado. A Republican, Baisley represents Colorado's 4th Senate district. Previously, he represented Colorado House of Representatives District 39, which encompassed parts of Douglas County and all of Teller County.[2] He is the Republican nominee in the 2026 U.S. Senate election in Colorado, challenging incumbent Democrat John Hickenlooper.

Background

Baisley earned a bachelor's degree with dual degrees in computer information systems and business administration from Columbia College, Missouri in 1993.[3] He currently works as the president of Slipglass, Inc., an engineering software firm.[1]

Career

Baisley was first elected as a state representative in the 2018 general elections. In that election, he defeated his Democratic and Libertarian party opponents, winning 62.61% of the vote.[4]

Baisley was re-elected to the state house in 2020.[5]

In 2022, Baisley ran for a seat in the Colorado State Senate. Specifically, he ran to represent Colorado's 4th Senate district. In the general election, he defeated his Democratic Party opponent, winning 60.84% of the vote.[6]

In March 2025, Baisley announced his candidacy for the 2026 Colorado gubernatorial election.[7] On January 5, 2026, he suspended his campaign for Governor and announced his candidacy for the 2026 United States Senate election instead.[8] Baisely was the only candidate to receive at least 30% support from the Republican State Assembly, allowing him to advance to the primary unopposed.[9] According to the election law organization States United Action, Baisley has promoted conspiracies theories and misinformation about the legitimacy of elections, especially the 2020 presidential election.[10][11]

Electoral history

2018 Colorado House of Representatives election, 39th District
Party Candidate Votes %
Republican Mark Baisley 29,289 62.61%
Democratic Kamala Vanderkolk 16,167 34.56%
Libertarian Tony Gross 1,325 2.83%
Total votes 46,781 100%
Republican hold
2020 Colorado House of Representatives election, 39th District
Party Candidate Votes %
Republican Mark Baisley (incumbent) 37,657 63.04%
Democratic Ian Chapman 20,257 33.91%
Libertarian Bonnie Pyle 1,823 3.05%
Total votes 59,737 100%
Republican hold
2022 Colorado Senate election, 4th District
Party Candidate Votes %
Republican Mark Baisley 55,595 60.84%
Democratic Jeff Ravage 35,789 39.16%
Total votes 91,384 100%
Republican hold

References

  1. 1 2 "About Mark". Mark Baisley, Republican for Colorado State Representative. Retrieved January 10, 2019.
  2. ↑ Colorado Reapportionment Commission Staff (December 22, 2011). "Legislative District Information After 2011 Reapportionment House District 39" (PDF). State of Colorado. Archived from the original (PDF) on February 1, 2017. Retrieved January 10, 2019.
  3. ↑ "Personnel Directory - Columbia College - Acalog ACMS™". catalog.ccis.edu. Retrieved June 16, 2020.
  4. ↑ "Colorado election results, November 6, 2018, 2018 General Election". Colorado Secretary of State. November 6, 2018. Retrieved January 10, 2019.
  5. ↑ "2020 abstract of votes cast" (PDF). Office of the Secretary of State, State of Colorado. 2020. p. 116. Archived from the original (PDF) on June 27, 2021. Retrieved December 4, 2020.
  6. ↑ "Colorado election results: November 8, 2022, general election state senate district 4". Colorado Secretary of State. State of Colorado. December 2, 2022. Retrieved December 5, 2022.
  7. ↑ Bente, Birkeland (March 3, 2025). "Mark Baisley becomes second Republican state lawmaker to enter Colorado's 2026 race for governor". Colorado Sun.
  8. ↑ Luning, Ernest (January 5, 2026). "Colorado Republican Mark Baisley exits gubernatorial race, launches US Senate campaign". Colorado Politics. Retrieved January 6, 2026.
  9. ↑ "Hickenlooper wins Democratic primary, Baisley wins GOP nod". The Hill. June 30, 2026. Retrieved August 10, 2026.
  10. ↑ Parks, Miles (May 4, 2026). "In many states, election-denying candidates are running to control voting". NPR. Retrieved August 11, 2026.
  11. ↑ Action, States United (August 7, 2026). "Election Denial in Colorado". Election Denial in Colorado. Retrieved August 11, 2026.
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