Mark Baisley

Baisley earned a bachelor's degree with dual degrees in computer information systems and business administration from Columbia College, Missouri in 1993.^[4] He currently works as the president of Slipglass, Inc., an engineering software firm.^[1] Baisley has been married to his high school sweetheart Maryann for more than 45 years. Maryann and Baisley, are the parents of four children and they also seven grandchildren.^[5]

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.^[6]

Baisley was re-elected to the state house in 2020.^[7]

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.^[8]

In March 2025, Baisley announced his candidacy for the 2026 Colorado gubernatorial election.^[9] On January 5, 2026, he suspended his campaign for Governor and announced his candidacy for the 2026 United States Senate election instead.^[10] Baisely was the only candidate to receive at least 30% support from the Republican State Assembly, allowing him to advance to the primary unopposed.^[11] 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.^[12][13]