Mark Baisley
Mark Baisley (Republican Party) is a member of the Colorado State Senate, representing District 4. He assumed office on January 9, 2023. His current term ends on January 12, 2027.
Baisley (Republican Party) is running for election to the U.S. Senate to represent Colorado. He is on the ballot in the general election on November 3, 2026. He advanced from the Republican primary on June 30, 2026.
Baisley also ran for election for Governor of Colorado. He did not appear on the ballot for the Republican primary on June 30, 2026.
Biography
Mark Baisley was born in Hastings, Minnesota. Baisley earned a B.S. in computer information systems/business administration from Columbia College. His career experience includes working as the president of Slipglass, Inc. and Enspherics, a senior engineer with Raytheon, and a senior systems engineer with Martin Marietta. Baisley served on the Columbia College Board of Trustees and as the vice chair and finance chairman of the Republican Party of Colorado.[1][2][3][4][5]
Committee assignments
2025-2026
Baisley was assigned to the following committees:
- Business, Labor, and Technology Committee
- Senate Local Government and Housing Committee
- Technology Committee
2023-2024
Baisley was assigned to the following committees:
- Business, Labor, and Technology Committee
- Senate Education Committee
- Senate State, Veterans, and Military Affairs Committee
- Technology Committee
2021-2022
Baisley was assigned to the following committees:
- Technology Committee
- House Appropriations Committee
- House Education Committee
- Health and Health Services Committee
2019-2020
Baisley was assigned to the following committees:
- House Education Committee
- Health and Health Services Committee
- Colorado Health Insurance Exchange Oversight Committee
- Technology Committee
Sponsored legislation
The following table lists bills this person sponsored as a legislator, according to BillTrack50 and sorted by action history. Bills are sorted by the date of their last action. The following list may not be comprehensive. To see all bills this legislator sponsored, click on the legislator's name in the title of the table.
Elections
2026
See also: United States Senate election in Colorado, 2026
United States Senate election in Colorado, 2026 (June 30 Democratic primary)
United States Senate election in Colorado, 2026 (June 30 Republican primary)
General election
The candidate list in this election may not be complete.
General election for U.S. Senate Colorado
The following candidates are running in the general election for U.S. Senate Colorado on November 3, 2026.
Candidate | ||
 | John Hickenlooper (D) | |
 | Mark Baisley (R) | |
 | Robert Chew (Colorado Forward Party)  | |
| Clinton Dale (Unaffiliated) | ||
 | Joshua Kuebler (Unaffiliated) | |
| Robert Wolfe (Unaffiliated) | ||
 | Adam Withrow (Unity Party) | |
| Matthew Wood (Independent) | ||
| ||||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
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Democratic primary election
Democratic primary for U.S. Senate Colorado
Incumbent John Hickenlooper defeated Julie Gonzales in the Democratic primary for U.S. Senate Colorado on June 30, 2026.
Candidate | % | Votes | ||
| ✔ | | John Hickenlooper | 56.7 | 377,739 |
 | Julie Gonzales | 43.3 | 288,355 | |
| Total votes: 666,094 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
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Withdrawn or disqualified candidates
- Nichole Miner (D)
- Jessica Williams (D)
- Brashad Hasley (D)
- Karen Breslin (D)
- Michael Scanlon (D)
- Anthony Zimpfer (D)
Republican primary election
Republican primary for U.S. Senate Colorado
Mark Baisley advanced from the Republican primary for U.S. Senate Colorado on June 30, 2026.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley | 100.0 | 362,330 |
| Total votes: 362,330 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
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Withdrawn or disqualified candidates
- George Washington Markert (R)
- Amanda Calderon (R)
- Sean Pond (R)
- Dathan Jones (R)
- Janak Joshi (R)
Endorsements
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2022
See also: Colorado State Senate elections, 2022
General election
General election for Colorado State Senate District 4
Mark Baisley defeated Jeff Ravage in the general election for Colorado State Senate District 4 on November 8, 2022.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley (R) | 60.8 | 55,595 |
| Jeff Ravage (D) | 39.2 | 35,789 | ||
| Total votes: 91,384 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Withdrawn or disqualified candidates
- Lori Boydston (Independent)
Democratic primary election
Democratic primary for Colorado State Senate District 4
Jeff Ravage advanced from the Democratic primary for Colorado State Senate District 4 on June 28, 2022.
Candidate | % | Votes | ||
| ✔ | Jeff Ravage | 100.0 | 13,899 | |
| Total votes: 13,899 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Republican primary election
Republican primary for Colorado State Senate District 4
Mark Baisley advanced from the Republican primary for Colorado State Senate District 4 on June 28, 2022.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley | 100.0 | 27,038 |
| Total votes: 27,038 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
2020
See also: Colorado House of Representatives elections, 2020
General election
General election for Colorado House of Representatives District 39
Incumbent Mark Baisley defeated Ian Chapman and Bonnie Pyle in the general election for Colorado House of Representatives District 39 on November 3, 2020.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley (R) | 63.0 | 37,657 |
 | Ian Chapman (D) | 33.9 | 20,257 | |
 | Bonnie Pyle (L) | 3.1 | 1,823 | |
| Total votes: 59,737 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Democratic primary election
Democratic primary for Colorado House of Representatives District 39
Ian Chapman advanced from the Democratic primary for Colorado House of Representatives District 39 on June 30, 2020.
Candidate | % | Votes | ||
| ✔ | | Ian Chapman | 100.0 | 9,875 |
| Total votes: 9,875 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Republican primary election
Republican primary for Colorado House of Representatives District 39
Incumbent Mark Baisley advanced from the Republican primary for Colorado House of Representatives District 39 on June 30, 2020.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley | 100.0 | 15,038 |
| Total votes: 15,038 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Libertarian convention
Libertarian convention for Colorado House of Representatives District 39
Bonnie Pyle advanced from the Libertarian convention for Colorado House of Representatives District 39 on April 13, 2020.
Candidate | ||
| ✔ | | Bonnie Pyle (L) |
| ||||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
2018
General election
General election for Colorado House of Representatives District 39
Mark Baisley defeated Kamala Vanderkolk and Tony Gross in the general election for Colorado House of Representatives District 39 on November 6, 2018.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley (R) | 62.6 | 29,289 |
 | Kamala Vanderkolk (D) | 34.6 | 16,167 | |
| Tony Gross (L) | 2.8 | 1,325 | ||
| Total votes: 46,781 (100.00% precincts reporting) | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Democratic primary election
Democratic primary for Colorado House of Representatives District 39
Kamala Vanderkolk advanced from the Democratic primary for Colorado House of Representatives District 39 on June 26, 2018.
Candidate | % | Votes | ||
| ✔ | | Kamala Vanderkolk | 100.0 | 5,601 |
| Total votes: 5,601 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Republican primary election
Republican primary for Colorado House of Representatives District 39
Mark Baisley advanced from the Republican primary for Colorado House of Representatives District 39 on June 26, 2018.
Candidate | % | Votes | ||
| ✔ | | Mark Baisley | 100.0 | 10,079 |
| Total votes: 10,079 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Campaign themes
2026
Ballotpedia survey responses
See also: Ballotpedia's Candidate Connection
Mark Baisley did not complete Ballotpedia's 2026 Candidate Connection survey.
2022
Mark Baisley did not complete Ballotpedia's 2022 Candidate Connection survey.
2020
Mark Baisley did not complete Ballotpedia's 2020 Candidate Connection survey.
Campaign finance summary
Note: The finance data shown here comes from the disclosures required of candidates and parties. Depending on the election or state, this may represent only a portion of all the funds spent on their behalf. Satellite spending groups may or may not have expended funds related to the candidate or politician on whose page you are reading this disclaimer. Campaign finance data from elections may be incomplete. For elections to federal offices, complete data can be found at the FEC website. Click here for more on federal campaign finance law and here for more on state campaign finance law.
Scorecards
A scorecard evaluates a legislator’s voting record. Its purpose is to inform voters about the legislator’s political positions. Because scorecards have varying purposes and methodologies, each report should be considered on its own merits. For example, an advocacy group’s scorecard may assess a legislator’s voting record on one issue while a state newspaper’s scorecard may evaluate the voting record in its entirety.
Ballotpedia is in the process of developing an encyclopedic list of published scorecards. Some states have a limited number of available scorecards or scorecards produced only by select groups. It is Ballotpedia’s goal to incorporate all available scorecards regardless of ideology or number.
Click here for an overview of legislative scorecards in all 50 states. To contribute to the list of scorecards, email suggestions to editor@ballotpedia.org.
Below you can find the scorecards found for the Colorado General Assembly in 2025.
- Colorado AFL-CIO — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Consumer Health Initiative — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Fiscal Institute — Legislators are scored on how they voted on taxpayer-related issues.
- Colorado Providers Association — Legislators are scored on their votes on bills supported or opposed by the organization.
- Colorado Union of Taxpayers — Legislation is scored on its "reduction of taxes, regulation, and spending accountability."
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Conservation Colorado — Legislators are scored on their votes on bills about Colorado's climate, land, water, and communities.
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Liberty Scorecard — Legislators are scored on votes related to "the principles of individual rights, free markets and limited government."
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- The Freedom Index — Legislators are scored on their adherence to the limited government principles of the U.S. Constitution.
- Women's Lobby of Colorado — Legislators are scored on their stances on women's issues.
Below you can find the scorecards found for the Colorado General Assembly in 2024.
- Centennial Institute — Legislators are scored on their votes on issues relevant to the mission of the Centennial Institute and the strategic priorities of Colorado Christian University.
- Colorado AFL-CIO — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Consumer Health Initiative — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Union of Taxpayers — Legislation is scored on its "reduction of taxes, regulation, and spending accountability."
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Conservation Colorado — Legislators are scored on their votes on bills about Colorado's climate, land, water, and communities.
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Liberty Scorecard — Legislators are scored on votes related to "the principles of individual rights, free markets and limited government."
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- National Federation of Independent Business — Legislators are scored on their votes on bills related to business issues.
Below you can find the scorecards found for the Colorado General Assembly in 2023.
- Colorado AFL-CIO — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Consumer Health Initiative — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Union of Taxpayers — Legislation is scored on its "reduction of taxes, regulation, and spending accountability."
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Liberty Scorecard — Legislators are scored on votes related to "the principles of individual rights, free markets and limited government."
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- The Arc of Colorado — Legislators are scored on votes related to intellectual and developmental disability legislation.
Below you can find the scorecards found for the Colorado General Assembly in 2022.
- Centennial Institute — Legislators are scored on their votes on issues relevant to the mission of the Centennial Institute and the strategic priorities of Colorado Christian University.
- Colorado AFL-CIO — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Cobalt Advocates — Legislators are scored on their votes on bills related to reproductive health issues.
- Colorado Consumer Health Initiative — Legislators are scored on their votes on bills that the organization supports or opposes.
- Colorado Union of Taxpayers — Legislation is scored on its "reduction of taxes, regulation, and spending accountability."
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Conservation Colorado — Legislators are scored on their votes on bills about Colorado's climate, land, water, and communities.
- CoPIRG — Legislators are scored on their votes on "bills that will protect consumers, strengthen our democracy, and safeguard public health."
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Liberty Scorecard — Legislators are scored on votes related to "the principles of individual rights, free markets and limited government."
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- National Federation of Independent Business — Legislators are scored on their votes on bills related to business issues.
- One Colorado — Legislators are scored based on their votes on LGBTQ+ issues.
- The Arc of Colorado — Legislators are scored on votes related to intellectual and developmental disability legislation.
Below you can find the scorecards found for the Colorado General Assembly in 2021.
- Centennial Institute — Legislators are scored on their votes on issues relevant to the mission of the Centennial Institute and the strategic priorities of Colorado Christian University.
- Colorado Consumer Health Initiative — Legislators are usually scored on their votes on bills that the organization supports or opposes.
- Colorado Education Association — Legislators are scored on their votes related to education reflection and on how well legislators worked with educators to advance the CEA's priorities.
- Colorado Union of Taxpayers — Legislation is scored on its "reduction of taxes, regulation, and spending accountability."
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Conservation Colorado — Legislators are scored on their votes on bills about Colorado's climate, land, water, and communities.
- CoPIRG — Legislators are scored on their votes on "bills that will protect consumers, strengthen our democracy, and safeguard public health."
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Liberty Scorecard — Legislators are scored on votes related to "the principles of individual rights, free markets and limited government."
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- The American Conservative Union — Legislators are scored on their votes on conservative issues.
- The Arc of Colorado — Legislators are scored on votes related to intellectual and developmental disability legislation.
- Women's Lobby of Colorado — Legislators are scored on their stances on women's issues.
Below you can find the scorecards found for the Colorado General Assembly in 2020.
- Colorado Consumer Health Initiative — Legislators are usually scored on their votes on bills that the organization supports or opposes. However, in 2020 the organization released a more detailed overview of the legislative session.
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Healthier Colorado — Legislators are scored on their votes related to public health issues.
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- National Federation of Independent Business — Legislators are scored on their votes on bills related to business issues.
- The American Conservative Union — Legislators are scored on their votes on conservative issues.
- Women's Lobby of Colorado — Legislators are scored on their stances on women's issues.
Below you can find the scorecards found for the Colorado General Assembly in 2019.
- ACLU of Colorado — Legislators are scored on their votes on bills the ACLU of Colorado "felt were the best representations of the civil liberties issues facing Colorado today."
- Colorado Consumer Health Initiative — Legislators are scored on their votes on bills that are supported or opposed by the organization.
- Colorado Voters for Animals — Legislators are scored on their stances on animal issues.
- Conservation Colorado — Legislators are scored on their votes on bills related to environmental conservation.
- Mental Health Colorado — Legislators are scored on their votes related to mental health issues.
- One Colorado — Legislators are scored based on their votes on LGBT issues.
- The American Conservative Union — Legislators are scored on their votes on conservative issues.
- Women's Lobby of Colorado — Legislators are scored on their stances on women's issues.
See also
2026 Elections
External links
Footnotes
- ↑ Denver Post, "Colorado GOP elects Mark Baisley vice chairman," September 21, 2013
- ↑ Colorado Peak Politics, "CONGRATS: Mark Baisley Elected Vice Chair of Colo GOP," September 23, 2013
- ↑ Colorado Statesman, "Will Colorado Republicans continue to heed the Call? Or usher in a new House?" January 2, 2015
- ↑ Colorado General Assembly, "Mark Baisley," accessed November 21, 2019
- ↑ LinkedIn, "Mark Baisley," accessed May 9, 2023
| Political offices | ||
|---|---|---|
| Preceded by Jim Smallwood (R) |
Colorado State Senate District 4 2023-Present |
Succeeded by - |
| Preceded by Polly Lawrence (R) |
Colorado House of Representatives District 39 2019-2023 |
Succeeded by Brandi Bradley (R) |
