Nonpartisan · Data from OpenStates / Plural Policy · Colorado
Votes with Republicans
95%
on 251 party-line votes · Senate Republicans median 93%
Cast a vote
99%
Yea or Nay on 985 of 991 roll calls · Senate median 99%
Their bills that became law
18 of 28
as a primary sponsor, this session · Republicans median 21
Roll calls on record
991
2026 Regular Session
Votes and bills updated Oct 4, 2026 from LegiScan (CC BY 4.0), which republishes the legislature’s own records. Profile details from OpenStates / Plural Policy. Figures cover 2026 Regular Session.
How John Carson votes
A party-line vote is a roll call where most voting Democrats and most voting Republicans took opposite sides. Absences and not-voting are never counted. Same method as our Congress pages.
Where John Carson sits in the Senate
Each dot is one member of the Senate, placed by how often they voted on the Democratic side of party-line votes. John Carson is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
13 of 251 party-line votes, most recent 10 shown.
HB1422 · Security Measures for Certain Government Entities
Senate: Third Reading Bill · 2026-05-13 · Passed 28–7 · most Republicans voted the other way
HB1306 · Wild Horse License Plate
In plain English Creates a special license plate featuring wild horses and appropriates money for its implementation.
Senate: Third Reading Bill · 2026-05-12 · Passed 26–9 · most Republicans voted the other way
HB1227 · Minors' Rights in Dependency & Neglect Proceedings
In plain English Affirms the rights of children and youth in dependency and neglect court proceedings.
Senate: Third Reading Bill · 2026-05-06 · Passed 28–7 · most Republicans voted the other way
HB1132 · Practices to Support Pollinators
Senate: Third Reading Bill · 2026-05-06 · Passed 24–11 · most Republicans voted the other way
HB1123 · Preventing Sexual Abuse in Jails
Senate: Third Reading Bill · 2026-05-05 · Passed 27–8 · most Republicans voted the other way
SB117 · Permissible Methods of Selling Lottery Tickets
Senate: Third Reading Bill · 2026-04-23 · Passed 22–13 · most Republicans voted the other way
SB066 · Regulation of Compounded Weight-Loss Medication
In plain English Requires state regulation of weight-loss medications that are compounded but not approved by the federal Food and Drug Administration.
Senate: Third Reading Bill · 2026-04-17 · Passed 20–15 · most Republicans voted the other way
HB1385 · Public Defender & Prosecutor Behavioral Health Program
In plain English Directs all funding for the public defender and prosecutor behavioral health support program in fiscal year 2026-27 to the state public defender's office.
Senate: Third Reading Bill · 2026-04-16 · Passed 27–8 · most Republicans voted the other way
SB141 · Wildlife Collision Prevention
In plain English Allows drivers to pay an optional fee during vehicle registration to fund wildlife crossings and related transportation improvements.
Senate: Third Reading Bill · 2026-04-13 · Passed 28–7 · most Republicans voted the other way
SB013 · Exclude Cohabitation from Elements of Bigamy
Senate: House Amendments Repass · 2026-03-13 · Passed 27–7 · most Republicans voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
HB1274 · State Agency Payments to Grant Recipients
In plain English Allows state agencies to pay a percentage of a grant's total value to nonprofit recipients when executing or renewing grant agreements.
Senate: Miscellaneous Recede · 2026-05-13 · Failed 17–17
HB1289 · Modification of Certain Tax Expenditures
Senate: Committee of the Whole Cow * (s.001) · 2026-05-12 · Failed 17–17
HB1418 · Online Add-on Transaction Fee Youth Service Enterprise
In plain English Requires social media platforms offering online gaming to young people to charge fees on add-on purchases and direct revenue to new enterprises funding youth mental health and programming services.
Senate: Third Reading Bill · 2026-05-13 · Passed 18–17
SB115 · Post-Conviction Relief for Certain Offenders
In plain English Allows certain imprisoned offenders to seek post-conviction relief and adjusts state funding accordingly.
Senate: House Amendments Repass · 2026-05-13 · Passed 18–17
HB1054 · Protections for Worker Safety
Senate: Third Reading Bill · 2026-05-13 · Failed 17–18
Democrats they vote with most
Share of contested roll calls (the losing side got at least 10%) where both voted and landed on the same side. Unanimous votes are left out, because on those everyone agrees.
Dylan RobertsDemocrat · District 8 · 327 shared contested votes
30%
Kyle MullicaDemocrat · District 24 · 284 shared contested votes
24%
Lindsey DaughertyDemocrat · District 19 · 293 shared contested votes
24%
Their session, month by month
Dark bars are roll calls they were recorded on each month; the red part is the ones without a Yea or Nay (6 in all). Gaps are months the chamber wasn’t voting.
← Colorado Delegation
YeaYeaNayNayYeaNayYeaYeaNayYeaNayNayNayYeaYeaYeaNayNayYeaYeaYeaNayYeaNayNayYeaNayYeaNayYeaYeaYeaYeaYeaNayNayNayYeaNayYeaNayYeaYeaNayYeaNayNayYeaNayNayYeaYeaYeaYeaNayYeaNayNayNayYea
Their bills, from filing to law
Bills John Carson was a primary sponsor of this session. Most bills from either party never leave committee; in Illinois many never get past the Assignments or Rules committee.
Introduced28
Out of committee25
Passed one chamber23
Passed both chambers19
Became law18
Never left committee0
For comparison, the median Republican member of the Senate has 21 bills that became law this session.
What their bills are about
Crimes, Corrections, & Enforcement 7Fiscal Policy & Taxes 5Transportation & Motor Vehicles 4State Government 4General Assembly 2Business & Economic Development 2
Voluntary Alcohol Breath Test
Concerning a requirement that a law enforcement officer offer a voluntary preliminary screening test for alcohol to a driver, and, in connection therewith, making an appropriation.
Became lawGovernor Signed · 2026-06-04
Updates to State Emergency Response Departments & Divisions
Concerning updates to state entities responsible for responding to emergency situations.
Became lawGovernor Signed · 2026-06-04
Transfers to General Fund & Colorado Economic Development Fund
Concerning transfers from the universal high school scholarship cash fund.
Became lawGovernor Signed · 2026-06-03
Rights for Victims of Certain Crimes
Concerning changes to the "Victim Rights Act".
Became lawGovernor Signed · 2026-06-03
Revisor's Bill
Concerning the nonsubstantive revision of the Colorado Revised Statutes, as amended, and, in connection therewith, amending or repealing obsolete, imperfect, and inoperative law to preserve the legislative intent, effect, and meaning of the law.
Became lawGovernor Signed · 2026-06-02
Change Practices of Work Force Development Council
In plain English Changes the state workforce development council's practices and reduces its appropriation.
Official synopsis: Concerning changes to the state work force development council's practices, and, in connection therewith, reducing an appropriation.
Became lawGovernor Signed · 2026-06-02
Accurate Documents for Parole Determinations
Concerning documents relied upon for parole determinations.
Became lawGovernor Signed · 2026-06-01
Extend Conservation Easement Tax Credit
In plain English Extends the conservation easement tax credit through income tax year 2036.
Official synopsis: Concerning the extension of the conservation easement tax credit through income tax year 2036.
Became lawGovernor Signed · 2026-06-01
Lobbyist Regulation
Concerning the regulation of lobbyists, and, in connection therewith, making an appropriation.
VetoedGovernor Vetoed · 2026-05-29
Conversational Artificial Intelligence Service Operator Requirements
Concerning requirements for an operator of a conversational artificial intelligence service.
Became lawGovernor Signed · 2026-05-29
Interlock Device for Impaired Drivers
In plain English Requires impaired drivers to use interlock devices on their vehicles as a condition of restricted driving privileges.
Official synopsis: Concerning interlock-restricted license requirements for impaired drivers, and, in connection therewith, making an appropriation.
Became lawGovernor Signed · 2026-05-28
Increased Penalty for Vehicular Homicide & Assault
In plain English Increases criminal penalties for assaultive conduct with a motor vehicle and adds causing death with a motor vehicle to criminally negligent homicide charges.
Official synopsis: Concerning increasing criminal penalties related to assaultive conduct with a motor vehicle, and, in connection therewith, adding the conduct of causing the death of another person with a motor vehicle to the crime of criminally negligent homicide.
Became lawGovernor Signed · 2026-05-28
Trafficking & Commercial Sexual Activity Offenses
In plain English Changes sentencing requirements for human trafficking and pimping offenses, allows courts to consider fund sources in bond decisions, and updates references to child sexual abuse offenses.
Official synopsis: Concerning modifying certain criminal law provisions, and, in connection therewith, changing sentencing requirements for human trafficking and certain pimping offenses, permitting a court to consider the source of funds when making bond determinations, and updating references to offenses involving commercial sexual activity with a child.
Out of committeeSenate Committee on Appropriations Lay Over Unamended – Amendment(s) Failed · 2026-05-14
Back-to-School Sales Tax Holiday
In plain English Allows a sales tax holiday on back-to-school items.
Official synopsis: Concerning a sales and use tax holiday for back-to-school items.
Out of committeeHouse Committee on Appropriations Lay Over Unamended – Amendment(s) Failed · 2026-05-14
Nuclear Workforce Development & Education Program
In plain English Creates a nuclear workforce development and education program to promote job training opportunities in Colorado's nuclear sector.
Official synopsis: Concerning promoting workforce development opportunities in Colorado's nuclear sector.
FailedHouse Committee on Appropriations Postpone Indefinitely · 2026-05-12
“In plain English” lines are written by ThePolitibase with AI (Claude), from the official synopsis only; the synopsis is the authoritative text. Descriptions are the legislature’s own synopsis. Bill data from LegiScan, CC BY 4.0.
Loading committees…
SB165 · 2026-05-13
Species Conservation Measures (Senate: House Amendments Concur)
SB165 · 2026-05-13
Species Conservation Measures (Senate: House Amendments Repass)
HB1236 · 2026-05-13
Arbitration Reform (Senate: Third Reading Bill)
HB1418 · 2026-05-13
Online Add-on Transaction Fee Youth Service Enterprise (Senate: Third Reading Bill)
SB187 · 2026-05-13
Establishing Commission on Medicaid (Senate: House Amendments Concur)
SB187 · 2026-05-13
Establishing Commission on Medicaid (Senate: House Amendments Repass)
HB1416 · 2026-05-13
Transfers to General Fund & Colorado Economic Development Fund (Senate: Third Reading Bill)
SB172 · 2026-05-13
Front Range Passenger Rail District (Senate: House Amendments Concur)
SB172 · 2026-05-13
Front Range Passenger Rail District (Senate: House Amendments Repass)
SB115 · 2026-05-13
Post-Conviction Relief for Certain Offenders (Senate: House Amendments Concur)
SB115 · 2026-05-13
Post-Conviction Relief for Certain Offenders (Senate: House Amendments Repass)
HB1425 · 2026-05-13
Applied Behavior Analysis Services (Senate: Third Reading Bill)
HB1429 · 2026-05-13
County Administration Public Assistance Programs (Senate: Third Reading Bill)
SB035 · 2026-05-13
Increase of Traffic Violation Penalties (Senate: House Amendments Concur)
SB035 · 2026-05-13
Increase of Traffic Violation Penalties (Senate: House Amendments Repass)
HB1223 · 2026-05-13
Modifying Certain Tax Expenditures (Senate: Third Reading Amend (l.031))
HB1223 · 2026-05-13
Modifying Certain Tax Expenditures (Senate: Third Reading Bill)
HB1054 · 2026-05-13
Protections for Worker Safety (Senate: Third Reading Bill)
SB078 · 2026-05-13
Changes to Institutions of Higher Education Statutes (Senate: House Amendments Concur)
SB078 · 2026-05-13
Changes to Institutions of Higher Education Statutes (Senate: House Amendments Repass)
SB155 · 2026-05-13
Increase Access Homeowner's Insurance Enterprise (Senate: House Amendments Concur)
SB155 · 2026-05-13
Increase Access Homeowner's Insurance Enterprise (Senate: House Amendments Repass)
HB1250 · 2026-05-13
Procedures Related to Civil Asset Forfeiture (Senate: Third Reading Bill)
SB048 · 2026-05-13
Remove Exception to Marry with Judicial Approval (Senate: House Amendments Concur)
SB048 · 2026-05-13
Remove Exception to Marry with Judicial Approval (Senate: House Amendments Repass)
SB042 · 2026-05-13
Revenue Classification Taxpayers Bill of Rights (Senate: House Amendments Concur)
SB042 · 2026-05-13
Revenue Classification Taxpayers Bill of Rights (Senate: House Amendments Repass)
SB002 · 2026-05-13
Energy Affordability (Senate: House Amendments Concur)
SB002 · 2026-05-13
Energy Affordability (Senate: House Amendments Repass)
SB003 · 2026-05-13
End-of-Life Management of Electric Vehicle Batteries (Senate: House Amendments Concur)
SB003 · 2026-05-13
End-of-Life Management of Electric Vehicle Batteries (Senate: House Amendments Repass)
HB1433 · 2026-05-13
Funding to Sustain Fire-Related Services (Senate: Third Reading Bill)
HB1289 · 2026-05-13
Modification of Certain Tax Expenditures (Senate: Third Reading Amend (l.081))
HB1289 · 2026-05-13
Modification of Certain Tax Expenditures (Senate: Third Reading Amend (l.082))
HB1289 · 2026-05-13
Modification of Certain Tax Expenditures (Senate: Third Reading Bill)
HB1335 · 2026-05-13
Abortion Medication Access on College Campuses (Senate: Third Reading Bill)
HB1309 · 2026-05-13
Abuse in Cases of Separation (Senate: Third Reading Bill)
SB184 · 2026-05-13
Firefighter Cancer Benefits & Workers' Compensation (Senate: House Amendments Concur)
SB184 · 2026-05-13
Firefighter Cancer Benefits & Workers' Compensation (Senate: House Amendments Repass)
SB093 · 2026-05-13
Workers' Compensation Insurance Coverage Verification (Senate: House Amendments Concur)
SB093 · 2026-05-13
Workers' Compensation Insurance Coverage Verification (Senate: House Amendments Repass)
SB023 · 2026-05-13
School Finance Act (Senate: House Amendments Concur)
SB023 · 2026-05-13
School Finance Act (Senate: House Amendments Repass)
HB1424 · 2026-05-13
Transportation Network Company Consumer Protection (Senate: Third Reading Bill)
SB131 · 2026-05-13
Sports Betting Protections (Senate: House Amendments Concur)
SB131 · 2026-05-13
Sports Betting Protections (Senate: House Amendments Repass)
HB1141 · 2026-05-13
Discriminatory Practices in Public Schools (Senate: Third Reading Bill)
HB1426 · 2026-05-13
Department of Law Legislative Report (Senate: Third Reading Amend (l.014))
HB1426 · 2026-05-13
Department of Law Legislative Report (Senate: Third Reading Bill)
HB1272 · 2026-05-13
Extreme Temperatures Worker Protections (Senate: Third Reading Bill)
HB1325 · 2026-05-13
Natural Medicine (Senate: Third Reading Bill)
SB015 · 2026-05-13
Commercial Sexual Activity with a Child Offenses (Senate: House Amendments Concur)
SB015 · 2026-05-13
Commercial Sexual Activity with a Child Offenses (Senate: House Amendments Repass)
SB152 · 2026-05-13
Changes Automated Vehicle Identification System Usage (Senate: House Amendments Concur)
SB152 · 2026-05-13
Changes Automated Vehicle Identification System Usage (Senate: House Amendments Repass)
HB1422 · 2026-05-13
Security Measures for Certain Government Entities (Senate: Third Reading Bill)
HB1255 · 2026-05-13
Social Media Duty to Report & Search Warrants (Senate: Third Reading Bill)
HB1274 · 2026-05-13
State Agency Payments to Grant Recipients (Senate: Miscellaneous Recede)
HB1274 · 2026-05-13
State Agency Payments to Grant Recipients (Senate: Miscellaneous Repass)
SB169 · 2026-05-13
Revisor's Bill (Senate: House Amendments Concur)
Complete voting record from LegiScan (showing the 60 most recent of 991 total roll-call votes this session).
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