Don Mayhew, Missouri House District 124: Voting Record

Where they sit

Every current House member, placed from most liberal to most conservative by how they voted on contested bills.

← Most liberalThe aisleMost conservative →

Votes with DemocratsCrosses party linesVotes with Republicans

Don Mayhew's seat is marked. Seats run from most liberal (left) to most conservative (right), by contested floor votes. Color shows how often each member crosses party lines toward the middle on votes that divide the parties: solid blue or red means almost never, and purple means on at least 1 in 5 of those votes. Gray seats are members too new to score. How these numbers work

Missouri House79thpercentile

More conservative than 78% of the Missouri House.

Most liberalMost conservative

34th most conservative of 155

The scores

How these numbers work →

Votes with the Speaker

86%

Each tick is a current House member, by party; the dot is Don Mayhew.

On 447 contested votes where both voted90% on all 870 votes where both voted

Votes with own party

95%

Each tick is a current House member, by party; the dot is Don Mayhew.

On 333 party-line votesPartisan rank: 93 of 155 in the House (tied with 13 others)92 House members vote with their party more often

Bills

The bills Don Mayhew sponsored this term and how far they got. Co-sponsors aren’t counted.

How these numbers work →

Bills: Don Mayhew
	Bills
Sponsored	51
Passed both chambers	1
Became law	1
Vetoed by the Governor	0

Rank by bills passed: Rank 15 of 155 in the House (tied with 21 others) · 15 of 105 Republicans (tied with 21 others)

A bill's sponsor is the member who introduced it; co-sponsors aren't counted.

Bills that passed both chambers

Bills that passed both chambers: Don Mayhew
Bill	Result	Final action
HB 419 (2025 Regular Session) Relating to education	Became law	May 12, 2025

Budget projects

Missouri's appropriation bills don't say which legislator asked for an item, so there's no budget figure for Missouri legislators.

Contested votes where they split

62 against the Speaker; 52 against most of their party.

Contested votes where they split: Don Mayhew
Date	Bill and motion	Their vote	Speaker	Most of their party
Sept. 16, 2026	HR 2: Informs the Senate that the House adopted no motions to override the veto of certain bills Previous Question	Yea	Nay (split)	Nay (split)
May 14, 2026	SB 1019: Modifies several provisions relating to health care Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2026	SB 953: Modifies provisions relating to environmental programs within the Department of Natural Resources Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2026	HB 1871: Modifies provisions relating to elections Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2026	HB 1871: Modifies provisions relating to elections Concurrence	Nay	Yea (split)	Yea (split)
May 6, 2026	HB 2018: Appropriates money for the expenses, grants, refunds, and distributions of the several departments and offices of state government Final Passage	Yea	Nay (split)	Yea
May 6, 2026	HB 2006: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Agriculture, the Department of Natural Resources, and the… Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 6, 2026	HB 2006: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Agriculture, the Department of Natural Resources, and the… Concurrence	Nay	Yea (split)	Yea (split)
May 6, 2026	HB 2004: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Revenue and Department of Transportation Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 6, 2026	HB 2004: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Revenue and Department of Transportation Concurrence	Nay	Yea (split)	Yea (split)
May 5, 2026	SB 1421: Modifies provisions relating to public safety House Amendment 21	Yea	Nay (split)	Yea
April 30, 2026	SB 1408: Increases the maximum speed limit from 70 to 75 miles per hour on rural interstates and freeways Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 28, 2026	HB 1758: Establishes the "Daylight Saving as New Standard Time Pact" Third Reading and Final Passage	Yea	Nay (split)	Yea
April 22, 2026	SB 914: Modifies provisions relating to sewage regulation Final Passage	Nay	Excused	Yea (split)
April 20, 2026	HB 2151: Modifies provisions governing the fast track workforce incentive grant Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 20, 2026	HB 2142: Modifies the "Show MO Act" tax credit caps for qualified motion media production projects Third Reading and Final Passage	Nay	Yea (split)	Nay
April 20, 2026	HB 1736: Modifies provisions governing county sales taxes for park purposes to allow tax revenues to be used for storm water management projects in parks Third Reading and Final Passage	Nay	Yea (split)	Nay
April 13, 2026	HB 3111: Modifies provisions relating to professional surety bail bond agents Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 9, 2026	HB 2387: Modifies provisions relating to the presidential preference primary Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 9, 2026	HB 2927: Modifies provisions relating to settlement demands Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2026	HB 1871: Modifies provisions relating to elections Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2026	HB 2641: Creates provisions relating to cannabis Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2026	HB 2020: Appropriates money for the expenses, grants, refunds, and distributions of the several departments and offices of state government Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2026	HB 2019: Appropriates money for the expenses, grants, refunds, and distributions of the several departments and offices of state government Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 30, 2026	HB 1623: Creates provisions relating to emergency suspensions or restrictions for massage therapists and chiropractors Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 26, 2026	HB 2004: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Revenue and Department of Transportation Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 26, 2026	Motion: Representative Riley moved that Rule 98 be suspended Motion to Suspend a Rule	Nay	Yea (split)	Yea (split)
March 11, 2026	HB 2395: Modifies provisions relating to sewage disposal Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
Feb. 23, 2026	HB 1844: Establishes a licensure compact for athletic trainers Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
Feb. 18, 2026	HB 2989: Modifies provisions relating to gaming Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
Sept. 9, 2025	HB 1: Creates provisions for redistricting federal congressional seats Third Reading and Final Passage	Yea	Nay (split)	Yea
Sept. 9, 2025	HJR 3: Creates the "Protect Missouri Voters" amendment Third Reading and Final Passage	Yea	Nay (split)	Yea
Sept. 8, 2025	HB 1: Creates provisions for redistricting federal congressional seats Perfection	Yea	Nay (split)	Yea
Sept. 8, 2025	HJR 3: Creates the "Protect Missouri Voters" amendment Perfection	Yea	Nay (split)	Yea
May 15, 2025	SB 105: Modifies provisions relating to invasive plants Final Passage	Nay	Yea (split)	Yea (split)
May 15, 2025	SB 82: Creates provisions relating to water preservation in the state Final Passage	Nay	Yea (split)	Yea (split)
May 15, 2025	SB 3: Modifies or enacts provisions relating to Department of Revenue fee offices Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2025	SB 105: Modifies provisions relating to invasive plants House Amendment 1	Nay	Yea (split)	Nay
May 12, 2025	SB 167: Modifies provisions relating to the protection of certain persons and animals Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2025	HB 145: Modifies provisions of the sunshine law Final Passage	Nay	Yea (split)	Yea (split)
May 12, 2025	HB 145: Modifies provisions of the sunshine law Concurrence	Nay	Yea (split)	Yea (split)
May 9, 2025	HB 11: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Social Services Concurrence	Nay	Yea (split)	Yea (split)
May 9, 2025	HB 3: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Higher Education and Workforce Development Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
May 9, 2025	HB 3: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Higher Education and Workforce Development Concurrence	Nay	Yea (split)	Yea (split)
May 8, 2025	Motion: Representative Riley again moved that Rule 98 be suspended Motion to Suspend a Rule	Nay	Yea (split)	Yea (split)
April 29, 2025	SB 7: Modifies provisions relating to health care Third Reading and Final Passage	Yea	Nay (split)	Yea
April 24, 2025	HB 606: Modifies provisions relating to the department of higher education and workforce development Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 22, 2025	HB 916: Establishes certain protections for vulnerable persons House Amendment 15	Nay	Excused	Yea (split)
April 22, 2025	HB 200: Modifies provisions relating to environmental protection Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 22, 2025	HB 952: Establishes provisions relating to payments for tort liability to insurers Third Reading and Final Passage	Nay	Yea (split)	Nay
April 22, 2025	HB 918: Relating to civil actions Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 17, 2025	HJR 73: Proposes a constitutional amendment that establishes provisions relating to reproductive health care Third Reading and Final Passage	Yea	Nay (split)	Yea
April 15, 2025	HJR 73: Proposes a constitutional amendment that establishes provisions relating to reproductive health care Perfection	Yea	Nay (split)	Yea
April 14, 2025	HB 126: Modifies provisions relating to elections Third Reading and Final Passage	Nay	Yea (split)	Nay
April 7, 2025	HB 970: Establishes provisions relating to video lottery gaming terminals, licenses, and regulation Perfection	Yea	Yea	Nay (split)
April 7, 2025	HB 478: Modifies provisions relating to professional licensing Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 7, 2025	HB 507: Modifies provisions relating to elections Third Reading and Final Passage	Yea	Yea	Nay (split)
April 3, 2025	HB 3: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Higher Education and Workforce Development Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2025	HB 661: Requires municipalities and the department of transportation to reimburse non-rate regulated utilities for site relocation costs incurred due to road… Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2025	HB 497: Modifies provisions relating to workers' compensation Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 31, 2025	HB 572: Authorizes motor fuel tax rate changes based on certain department of transportation expenditures House Amendment 2	Nay	Excused	Yea (split)
March 27, 2025	HB 58: Creates provisions relating to emergency suspensions or restrictions for massage therapists and chiropractors Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 27, 2025	HB 268: Modifies provisions relating to professional registration Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 27, 2025	HB 207: Modifies provisions relating to department of revenue fee offices Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 26, 2025	HB 176: Establishes provisions relating to electronic estate planning Amendment	Nay	Yea (split)	Yea (split)
March 13, 2025	SB 4: Modifies and creates new provisions relating to utilities Final Passage	Nay	Yea (split)	Yea (split)
Feb. 20, 2025	HB 544: Modifies labeling for certain pesticides Third Reading and Final Passage	Nay	Yea (split)	Yea (split)

Every roll call

How Don Mayhew voted on each of the 1,022 floor roll calls while in office, newest first.

Every roll call: Don Mayhew
Date	Vote	Their vote	Most of their party	Speaker	Yeas–nays
Loading…

Contested and party-line votes link to their own pages; the rest link to the official record.

Contact, committees and caucuses

Contact

Official page: house.mo.gov
Email: don.mayhew@house.mo.gov
Capitol office: Room 412-B, 201 W. Capitol Ave., Jefferson City, MO 65101
573-751-3604

Committees

Corrections and Public Institutions Chair
Government Efficiency Vice chair
Rules Committee on Legislative Oversight Vice chair
Budget
Budget Conference
Commerce
Fiscal Review
Justice System
Redistricting Special
Transportation
Transportation Oversight

Contact details and committee assignments from Open States' data on the Missouri General Assembly, which it collects from the chambers' websites, as of Oct. 15, 2026.