Sen. Mark Baisley
Republican Colorado Senate · District 4 · Colorado
+0.977Left–right score (within Senate)−1 = most liberal, +1 = most conservative in this chamber. Only compare with others in the same chamber.
#34 of 35Chamber rank, liberal→conservative#1 is the most liberal ranked member of this chamber.
84.1%Party unityHow often they vote the same way as most of their own party.
1016Roll calls (16 missed/absent)Recorded votes we have for this session; “missed” means they didn’t vote.
In office since 2023-01-09 · mark.baisley@senate.co.com · leg.colorado.gov/…/mark-baisley · Open States ID b4002b84-79a0-481a-94a8-00136c2dabb6
Capitol: State Capitol Room 346, Colorado Building 200 E. Colfax Ave., Denver, CO 80203 303-866-4877
Where they sit in the Colorado Senate
Each gray bar counts how many ranked members of the Colorado Senate have a score in that range, from most liberal (left) to most conservative (right). The colored line is Mark Baisley. Scores are relative to this chamber only.
Chamber, by party
Each tick is one ranked member, placed by their score (blue D, red R, purple I/other). The tall tick is Mark Baisley.
Committees
- Artificial Intelligence Impact Task Force
- Local Government and Housing
- Pension Review Commission
- Technology
- Transportation Legislation Review
- Transportation and Energy
Recent votes (latest 60 of 1016 in the current session data)
| Date | Bill / motion | Vote | Result |
|---|---|---|---|
| 2026-05-12 | HB 1273 Refer House Bill 26-1273 to the Committee on Appropriations. Transportation Network Company Maximum Percent Fare Retention | Nay | Fail |
| 2026-05-12 | HB 1112 Postpone House Bill 26-1112 indefinitely. Regulation of Underground Injection Control Wells | Yea | Pass |
| 2026-05-12 | HB 1273 Postpone House Bill 26-1273 indefinitely using a reversal of the previous roll call. There was no objection to the use of the reverse roll call, therefore, the Transportation Network Company Maximum Percent Fare Retention | Yea | Pass |
| 2026-05-11 | SB 102 Postpone Senate Bill 26-102 indefinitely. Large-Load Data Centers | Yea | Pass |
| 2026-05-11 | HB 1424 Refer House Bill 26-1424, as amended, to the Committee of the Whole. Transportation Network Company Consumer Protection | Nay | Pass |
| 2026-05-11 | HB 1286 Refer House Bill 26-1286 to the Committee on Appropriations. Automated Driving System Commercial Vehicles | Nay | Pass |
| 2026-05-07 | HB 1328 Refer House Bill 26-1328, as amended, to the Committee on Appropriations. Medicaid Nonemergency Medical Transportation | Nay | Pass |
| 2026-05-07 | HB 1075 Refer House Bill 26-1075 to the Committee on Appropriations. Child Welfare Prevention Services Funding | Yea | Pass |
| 2026-05-07 | HB 1147 Refer House Bill 26-1147 to the Committee on Appropriations. Host Home for People with Intellectual & Developmental Disabilities | Yea | Pass |
| 2026-05-07 | HB 1298 Refer House Bill 26-1298 to the Committee on Appropriations. Background Checks for Child Welfare Placements | Yea | Pass |
| 2026-05-06 | SB 192 Refer Senate Bill 26-192 to the Committee of the Whole. Producer Responsibility Dues Appeals Process | Nay | Pass |
| 2026-05-06 | SCR 1 Postpone SCR26-001 indefinitely. Areas of Local Preemption | Yea | Pass |
| 2026-04-30 | HB 1224 Refer House Bill 26-1224 to the Committee of the Whole. Protections for Mobile Home Park Residents | Nay | Pass |
| 2026-04-30 | HB 1308 Postpone House Bill 26-1308 indefinitely. Lot Splitting Approval by Subject Jurisdictions | Yea | Pass |
| 2026-04-30 | SCR 1 Refer SCR26-001 to the Committee on Appropriations. Areas of Local Preemption | Yea | Fail |
| 2026-04-30 | HB 1196 Refer House Bill 26-1196 to the Committee of the Whole. Tenant Data Information | Nay | Pass |
| 2026-04-29 | HB 1076 Refer House Bill 26-1076, as amended, to the Committee of the Whole. Transportation Statutory Clean-Up | Nay | Pass |
| 2026-04-29 | SB 82 Refer Senate Bill 26-082, as amended, to the Committee of the Whole. Local Government Renewable Energy Development Fee | Yea | Pass |
| 2026-04-29 | SB 182 Refer Senate Bill 26-182 to the Committee of the Whole. Updated Clean Energy Plan Municipally Owned Utility | Yea | Pass |
| 2026-04-29 | SB 22 Postpone Senate Bill 26-022 indefinitely. Challenges Meeting 2030 Emissions Reduction Goals | Yea | Pass |
| 2026-04-29 | SB 152 Refer Senate Bill 26-152, as amended, to the Committee of the Whole. Changes Automated Vehicle Identification System Usage | Yea | Pass |
| 2026-04-29 | HB 1226 Refer House Bill 26-1226, as amended, to the Committee of the Whole. Manage Emissions from Electric Generating Units | Nay | Pass |
| 2026-04-27 | SB 172 Refer Senate Bill 26-172, as amended, to the Committee on Appropriations. Front Range Passenger Rail District | Nay | Pass |
| 2026-04-27 | SB 172 Adopt amendment L.002 Front Range Passenger Rail District | Nay | Pass |
| 2026-04-27 | SB 171 Refer Senate Bill 26-171 to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Disposal of Preproduction Plastic Materials | Yea | Pass |
| 2026-04-27 | SB 172 Adopt amendment L.003 Front Range Passenger Rail District | Yea | Pass |
| 2026-04-23 | HB 1114 Postpone House Bill 26-1114 indefinitely. Allowed Minimum Lot Size for Subject Jurisdictions | Yea | Pass |
| 2026-04-23 | HB 1313 Refer House Bill 26-1313, as amended, to the Committee of the Whole. Adjust Requirements Statewide Affordable Housing Fund | Nay | Pass |
| 2026-04-22 | SB 142 Refer Senate Bill 26-142, as amended, to the Committee of the Whole. Development of Thermal Energy Resources | Nay | Pass |
| 2026-04-22 | HB 1300 Postpone House Bill 26-1300 indefinitely using a reversal of the previous roll call. There was no objection to the use of the reverse roll call, therefore, the Health Service District Affordable Housing Service | Yea | Pass |
| 2026-04-22 | SB 157 Refer Senate Bill 26-157, as amended, to the Committee on Appropriations. Determination of Town Abandonment | Yea | Pass |
| 2026-04-22 | HB 1300 Refer House Bill 26-1300 to the Committee of the Whole. Health Service District Affordable Housing Service | Nay | Fail |
| 2026-04-22 | HB 1318 Refer House Bill 26-1318, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Traffic Safety Near Schools | Yea | Pass |
| 2026-04-13 | SB 101 Refer Senate Bill 26-101, as amended, to the Committee of the Whole. Local Government Landfill Methane Emission Reduction Regulations | Yea | Pass |
| 2026-04-13 | SB 148 Refer Senate Bill 26-148, as amended, to the Committee on Appropriations. Financing Utility On-Bill Repayment Program | Nay | Pass |
| 2026-04-09 | HB 1045 Refer House Bill 26-1045 to the Committee of the Whole. Disabilities Housing Protections | Nay | Pass |
| 2026-04-08 | SB 150 Refer Senate Bill 26-150, as amended, to the Committee of the Whole. Modernizing Regional Transportation District | Nay | Pass |
| 2026-04-08 | SB 150 Adopt amendment L.013 Modernizing Regional Transportation District | Yea | Fail |
| 2026-04-06 | HB 1242 Refer House Bill 26-1242 to the Committee on Appropriations. Interlock Device for Impaired Drivers | Nay | Pass |
| 2026-04-06 | HB 1268 Adopt amendment L.003 Renewable Energy Development on Disturbed Lands | Yea | Fail |
| 2026-04-06 | HB 1268 Refer House Bill 26-1268 to the Committee of the Whole. Renewable Energy Development on Disturbed Lands | Nay | Pass |
| 2026-04-02 | HB 1239 Refer House Bill 26-1239, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. County Enforcement Authority | Yea | Pass |
| 2026-04-01 | HB 1208 Refer House Bill 26-1208 to the Committee of the Whole. Sunset Compliance Advisory Panel Air Pollution | Nay | Pass |
| 2026-04-01 | HB 1079 Refer House Bill 26-1079 to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Drive Motorcycle Written Permission | Yea | Pass |
| 2026-04-01 | HB 1081 Refer House Bill 26-1081, as amended, to the Committee of the Whole. Optimize Colorado Electric Transmission System | Nay | Pass |
| 2026-04-01 | HB 1237 Refer House Bill 26-1237 to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Transportation Safety Modifications | Yea | Pass |
| 2026-03-26 | HB 1253 Refer House Bill 26-1253 to the Committee of the Whole. Disconnection from Statutory Municipality | Nay | Pass |
| 2026-03-26 | HB 1339 Refer House Bill 26-1339 to the Committee of the Whole. Change Cesar Chavez Day to Farm Workers Day | Yea | Pass |
| 2026-03-26 | HB 1187 Refer House Bill 26-1187 to the Committee on Appropriations. Sunset Fire Suppression Programs | Nay | Pass |
| 2026-03-26 | HB 1145 Refer House Bill 26-1145 to the Committee of the Whole. Mobile Home Park Water Quality | Nay | Pass |
| 2026-03-25 | SB 141 Refer Senate Bill 26-141, as amended, to the Committee on Finance. Wildlife Collision Prevention | Nay | Pass |
| 2026-03-25 | HB 1095 Refer House Bill 26-1095, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Digital Publication for Legal Notice | Yea | Pass |
| 2026-03-25 | HB 1051 Refer House Bill 26-1051 to the Committee on Appropriations. Continue Microgrid Community Resilience Grant Program | Yea | Pass |
| 2026-03-25 | HB 1007 Refer House Bill 26-1007, as amended, to the Committee of the Whole. Improve Customer Use Distributed Energy Resources | Yea | Pass |
| 2026-03-25 | HB 1127 Refer House Bill 26-1127, as amended, to the Committee of the Whole. Reporting After Fatal Car Crash | Nay | Pass |
| 2026-03-25 | HB 1257 Refer House Bill 26-1257, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Local Regulation of Massage Facilities | Yea | Pass |
| 2026-03-19 | HB 1099 Refer House Bill 26-1099 to the Committee of the Whole. Protect Financial Condition of Homeowners Associations | Nay | Pass |
| 2026-03-19 | SB 129 Postpone Senate Bill 26-129 indefinitely. Mitigate Impacts of Tax Increment Financing | Yea | Pass |
| 2026-03-19 | HB 1071 Refer House Bill 26-1071 to the Committee of the Whole. Local Government Vehicle Identification System on Interstate Highways | Nay | Pass |
| 2026-03-18 | HB 1098 Refer House Bill 26-1098, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. Public Trustee Act Foreclosure Procedures | Yea | Pass |