Nonpartisan · Data from OpenStates / Plural Policy · Missouri
Democratic
· State Representative
Ian Mackey
Represents District 99 in the House of Representatives.
Votes with Democrats
74%
on 125 party-line votes · House Democrats median 96%
Cast a vote
84%
Yea or Nay on 340 of 404 roll calls · House median 93%
Their bills that became law
0 of 10
as a primary sponsor, this session · Democrats median 0
Roll calls on record
404
2026 Regular Session
Votes and bills updated Oct 5, 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 Ian Mackey 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 Ian Mackey sits in the House
Each dot is one member of the House, placed by how often they voted on the Democratic side of party-line votes. Ian Mackey is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
33 of 125 party-line votes, most recent 10 shown.
SB913 · Modifies provisions relating to tax credits
House: SBs 3rd READ – INFORMAL SS SB 913 · 2026-05-15 · Passed 103–34 · most Democrats voted the other way
SB890 · Repeals expired, terminated, sunset, and obsolete sections of law
House: SBs 3rd READ – INFORMAL SS SCS SB 890 · 2026-05-15 · Passed 90–43 · most Democrats voted the other way
SB953 · Modifies provisions relating to environmental programs within the Department of Natural Resources
House: SBs 3rd READ – INFORMAL HCS SB 953, A.A. · 2026-05-12 · Passed 107–37 · most Democrats voted the other way
SB835 · Modifies provisions relating to court procedures
House: SBs FOR THIRD READING HCS SS SCS SBS 835 & 1111, A.A. · 2026-05-07 · Passed 92–43 · most Democrats voted the other way
SB1119 · Creates procedures for the appointment of commissioners to a convention called under Article V of the U.S. Constitution
House: SBs FOR THIRD READING SB 1119 · 2026-05-05 · Passed 103–24 · most Democrats voted the other way
HB2061 · Provides protections against discrimination and antisemitism in public schools and public postsecondary educational institutions
House: HBs WITH SENATE AMENDMENTS SS HB 2061, A.A. · 2026-04-09 · Passed 100–17 · most Democrats voted the other way
HB2061 · Provides protections against discrimination and antisemitism in public schools and public postsecondary educational institutions
House: HBs WITH SENATE AMENDMENTS SS HB 2061, A.A. · 2026-04-09 · Passed 101–19 · most Democrats voted the other way
HB2927 · Modifies provisions relating to settlement demands
House: HBs FOR THIRD READING HB 2927 · 2026-04-09 · Passed 90–50 · most Democrats voted the other way
HB1791 · Establishes building permit issuance deadlines
House: HBs 3rd READ – INFORMAL HCS HB 1791 · 2026-04-07 · Passed 111–24 · most Democrats voted the other way
HB2760 · Establishes the "PRAISE Act", prohibiting the closure of places of worship during an emergency
House: HBs 3rd READ – INFORMAL HB 2760 · 2026-04-02 · Passed 104–38 · most Democrats voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
HB2989 · Modifies provisions relating to gaming
House: HBs FOR PERFECTION *HCS HB 2989, A.A. · 2026-02-16 · Failed 68–60
HB2426 · Establishes provisions relating to parental rights
House: HBs FOR THIRD READING HCS HB 2426 · 2026-04-30 · Passed 70–60
SB1002 · Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County
House: SBs 3rd READ – INFORMAL SS SB 1002 · 2026-05-15 · Passed 81–66
HB2002 · Appropriates money for the expenses, grants, refunds, and distributions of the State Board of Education and Department of Elementary and Secondary Education
House: BILLS IN CONFERENCE CCS SS SCS HCS HB 2002 · 2026-05-06 · Passed 83–68
HB2003 · Appropriates money for the expenses, grants, refunds, and distributions of the Department of Higher Education and Workforce Development
House: HABs FOR THIRD READING HCS HB 2003 · 2026-03-26 · Passed 83–66
Republicans 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.
John BlackRepublican · District 129 · 184 shared contested votes
57%
Terry ThompsonRepublican · District 53 · 157 shared contested votes
55%
Colin WellenkampRepublican · District 105 · 171 shared contested votes
54%
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 (64 in all). Gaps are months the chamber wasn’t voting.
← Missouri Delegation
NayNayNayNayNayNayNayAbsentYeaYeaYeaAbsentAbsentAbsentNayYeaYeaNayAbsentYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaAbsentAbsentYeaNayYeaAbsentAbsentNayAbsentAbsentYeaYeaAbsentYeaAbsentNayYeaAbsentAbsentNayYeaYeaNayYeaYeaYeaYeaAbsentAbsentYeaYea
Their bills, from filing to law
Bills Ian Mackey 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.
Introduced10
Out of committee2
Passed one chamber0
Passed both chambers0
Became law0
Never left committee8
For comparison, the median Democratic member of the House has 0 bills that became law this session.
Requires mobile application providers to allow customers to cancel their subscription service through the mobile application
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Provides protections against discrimination and antisemitism in public schools and public postsecondary educational institutions
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Bans using seclusion to confine a student
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Specifies that the seller of ammunition must verify the age of the purchaser
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Prohibits noncompete clauses in physician employment contracts
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Modifies provisions governing qualified students who receive Missouri Empowerment Scholarship Accounts Program grants
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Modifies provisions relating to trial procedures for murder in the first degree
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Establishes the "Marilyn Teitelbaum Death with Dignity Act"
Not out of committeeReferred: Emerging Issues(H) · 2026-05-15
Modifies the statute of limitations for personal injury claims from 5 years to 2 years
Out of committeeHCS Reported Do Pass (H) – AYES: 6 NOES: 1 PRESENT: 0 · 2026-02-25
Grants the use of the House Chamber to the YMCA Youth in Government State Conventions on November 13-14, 2026, November 20-21, 2026, and December 4-5, 2026
Out of committeeReported Do Pass (H) – AYES: 8 NOES: 0 PRESENT: 0 · 2026-02-11
Descriptions are the legislature’s own synopsis. Bill data from LegiScan, CC BY 4.0.
Loading committees…
SJR95 · 2026-05-15
Establishes the "Show-Me Prosperity Fund" (House: SJRs FOR THIRD READING SS SCS SJR 95)
SJR95 · 2026-05-15
Establishes the "Show-Me Prosperity Fund" (House: SJRs FOR THIRD READING SS SCS SJR 95)
SB1002 · 2026-05-15
Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County (House: SBs 3rd READ – INFORMAL SS SB 1002)
SB1002 · 2026-05-15
Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County (House: SBs 3rd READ – INFORMAL SS SB 1002)
SB1002 · 2026-05-15
Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County (House: SBs 3rd READ – INFORMAL SS SB 1002)
SB1002 · 2026-05-15
Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County (House: SBs 3rd READ – INFORMAL SS SB 1002)
SB1002 · 2026-05-15
Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County (House: SBs 3rd READ – INFORMAL SS SB 1002)
SB1135 · 2026-05-15
Creates "Bentley and Mason's Law" relating to child maintenance orders for certain persons convicted of the offense of driving while intoxicated (House: SBs 3rd READ – INFORMAL SS SB 1135)
SB1576 · 2026-05-15
Establishes the Missouri Ireland Trade Commission (House: SBs 3rd READ – INFORMAL SB 1576)
HB2636 · 2026-05-15
Establishes the "Uniform Mortgage Modification Act" (House: HBs WITH SENATE AMENDMENTS SS HB 2636, A.A.)
HB2636 · 2026-05-15
Establishes the "Uniform Mortgage Modification Act" (House: HBs WITH SENATE AMENDMENTS SS HB 2636, A.A.)
HB2896 · 2026-05-15
Modifies provisions relating to the governing bodies of certain public institutions of higher education (House: HBs WITH SENATE AMENDMENTS SS SCS HB 2896)
HB2896 · 2026-05-15
Modifies provisions relating to the governing bodies of certain public institutions of higher education (House: HBs WITH SENATE AMENDMENTS SS SCS HB 2896)
HB2896 · 2026-05-15
Modifies provisions relating to the governing bodies of certain public institutions of higher education (House: HBs WITH SENATE AMENDMENTS SS SCS HB 2896)
HB1696 · 2026-05-15
Modifies provisions relating to the right of sepulcher (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 1696, A.A.)
HB1696 · 2026-05-15
Modifies provisions relating to the right of sepulcher (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 1696, A.A.)
HB1696 · 2026-05-15
Modifies provisions relating to the right of sepulcher (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 1696, A.A.)
SB1553 · 2026-05-15
Authorizes incentives for producing certain critical materials and pharmaceuticals (House: SBs 3rd READ – INFORMAL SS SB 1553)
SB1553 · 2026-05-15
Authorizes incentives for producing certain critical materials and pharmaceuticals (House: SBs 3rd READ – INFORMAL SS SB 1553)
SB890 · 2026-05-15
Repeals expired, terminated, sunset, and obsolete sections of law (House: SBs 3rd READ – INFORMAL SS SCS SB 890)
SB890 · 2026-05-15
Repeals expired, terminated, sunset, and obsolete sections of law (House: SBs 3rd READ – INFORMAL SS SCS SB 890)
SB913 · 2026-05-15
Modifies provisions relating to tax credits (House: SBs 3rd READ – INFORMAL SS SB 913)
SB913 · 2026-05-15
Modifies provisions relating to tax credits (House: SBs 3rd READ – INFORMAL SS SB 913)
SB1067 · 2026-05-15
Establishes the Uniform Public Expression Protection Act, which provides procedures for dismissal of actions based on public expression (House: SBs 3rd READ – INFORMAL SB 1067)
HB2576 · 2026-05-15
Creates several new state designations (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HS HB 2576)
HB2576 · 2026-05-15
Creates several new state designations (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HS HB 2576)
SB835 · 2026-05-15
Modifies provisions relating to court procedures (House: BILLS IN CONFERENCE CCS HCS SS SCS SBS 835 & 1111)
HB2397 · 2026-05-15
Modifies requirements for a dissolution of a public water supply district (House: HBs WITH SENATE AMENDMENTS SS HB 2397, A.A.)
HB2397 · 2026-05-15
Modifies requirements for a dissolution of a public water supply district (House: HBs WITH SENATE AMENDMENTS SS HB 2397, A.A.)
HB2292 · 2026-05-15
Modifies provisions relating to abuse and neglect reporting, including a requirement to report companion animal abuse (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HB 2292, A.A.)
HB2292 · 2026-05-15
Modifies provisions relating to abuse and neglect reporting, including a requirement to report companion animal abuse (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HB 2292, A.A.)
HB2292 · 2026-05-15
Modifies provisions relating to abuse and neglect reporting, including a requirement to report companion animal abuse (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HB 2292, A.A.)
SJR87 · 2026-05-15
Modifies provisions relating to sheriffs (House: BILLS IN CONFERENCE CCS HCS SS SJR 87)
SB973 · 2026-05-15
Creates and modifies provisions relating to real estate transactions (House: BILLS IN CONFERENCE CCS HCS SS SCS SB 973)
HB2474 · 2026-05-15
Modifies provisions governing design-build contracts (House: HBs WITH SENATE AMENDMENTS SCS HCS HB 2474, A.A.)
HB2474 · 2026-05-15
Modifies provisions governing design-build contracts (House: HBs WITH SENATE AMENDMENTS SCS HCS HB 2474, A.A.)
SB1421 · 2026-05-15
Modifies provisions relating to public safety (House: BILLS IN CONFERENCE CCS SS SB 1421, E.C.)
SB1421 · 2026-05-15
Modifies provisions relating to public safety (House: BILLS IN CONFERENCE CCS SS SB 1421, E.C.)
SB1408 · 2026-05-15
Increases the maximum speed limit from 70 to 75 miles per hour on rural interstates and freeways (House: BILLS CARRYING REQUEST MESSAGES SB 1408)
SB1572 · 2026-05-14
Modifies provisions relating to public employee retirement systems (House: SBs 3rd READ – INFORMAL HCS SB 1572, A.A.)
HB1840 · 2026-05-14
Establishes an alert system to assist in the location of missing persons with developmental disabilities (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HB 1840)
HB1840 · 2026-05-14
Establishes an alert system to assist in the location of missing persons with developmental disabilities (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HB 1840)
SB1019 · 2026-05-14
Modifies several provisions relating to health care (House: SBs 3rd READ – INFORMAL HCS SB 1019, A.A.)
SB1019 · 2026-05-14
Modifies several provisions relating to health care (House: SBs 3rd READ – INFORMAL HCS SB 1019, A.A.)
SB1019 · 2026-05-14
Modifies several provisions relating to health care (House: SBs 3rd READ – INFORMAL HCS SB 1019, A.A.)
SB1019 · 2026-05-14
Modifies several provisions relating to health care (House: SBs 3rd READ – INFORMAL HCS SB 1019, A.A.)
HB2508 · 2026-05-14
Allows for a search of the series LLC in the SoS Business Entity website and to obtain a certificate of good standing (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 2508)
HB2508 · 2026-05-14
Allows for a search of the series LLC in the SoS Business Entity website and to obtain a certificate of good standing (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 2508)
SB1196 · 2026-05-14
Modifies provisions relating to grants for certain workforce training programs (House: SBs 3rd READ – INFORMAL HCS SS SB 1196, A.A., E.C.)
SB916 · 2026-05-14
Modifies provisions relating to sovereign immunity (House: SBs 3rd READ – INFORMAL SS SCS SB 916)
SB1033 · 2026-05-14
Creates provisions relating to the regulation of air quality (House: SBs 3rd READ – INFORMAL SS SB 1033)
SB1196 · 2026-05-14
Modifies provisions relating to grants for certain workforce training programs (House: SBs 3rd READ – INFORMAL HCS SS SB 1196, A.A., E.C.)
HB3231 · 2026-05-14
Establishes the "Missouri Innovation, Public Safety, and Accountability Act" (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HBS 3231 & 2531)
HB3231 · 2026-05-14
Establishes the "Missouri Innovation, Public Safety, and Accountability Act" (House: HBs WITH SENATE AMENDMENTS SS#2 SCS HCS HBS 3231 & 2531)
HB2372 · 2026-05-14
Modifies provisions relating to health care (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 2372, A.A.)
HB2372 · 2026-05-14
Modifies provisions relating to health care (House: HBs WITH SENATE AMENDMENTS SS SCS HCS HB 2372, A.A.)
HB1740 · 2026-05-14
Modifies provisions relating to driving while intoxicated (House: HBs WITH SENATE AMENDMENTS SS SCS HB 1740)
HB1740 · 2026-05-14
Modifies provisions relating to driving while intoxicated (House: HBs WITH SENATE AMENDMENTS SS SCS HB 1740)
SB975 · 2026-05-14
Modifies provisions relating to ambulance districts (House: BILLS IN CONFERENCE CCS HCS SS SB 975)
HB2596 · 2026-05-13
Modifies provisions relating to health benefit plans (House: BILLS IN CONFERENCE CCS SS HCS HB 2596)
Complete voting record from LegiScan (showing the 60 most recent of 404 total roll-call votes this session).
Primary Office
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