Nonpartisan · Data from OpenStates / Plural Policy · Maryland
Republican
· State Senator
Johnny Mautz
Represents District 37 in the State Senate.
Votes with Republicans
96%
on 256 party-line votes · Senate Republicans median 94%
Cast a vote
99%
Yea or Nay on 1,229 of 1,244 roll calls · Senate median 96%
Their bills that became law
5 of 20
as a primary sponsor, this session · Republicans median 5
Roll calls on record
1,244
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 Johnny Mautz 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 Johnny Mautz 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. Johnny Mautz is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
11 of 256 party-line votes, most recent 10 shown.
HB336 · Criminal Procedure – District Court – Issuance of Summonses and Arrest Warrants
Floor Amendment 593722/1 (Senator Love) Rejected · 2026-04-13 · Failed 12–34 · most Republicans voted the other way
HB222 · County Boards of Education – Opioid Overdose-Reversing Medications – Policy Requirements (Naloxone Access Act)
Third Reading Passed · 2026-04-13 · Passed 31–6 · most Republicans voted the other way
SB893 · Business Regulation – Rounding Cash Transactions – Authorization
In plain English Allows merchants to round cash transaction prices or change amounts in a specified manner and excludes rounded amounts from sales tax.
Third Reading Passed · 2026-04-13 · Passed 36–11 · most Republicans voted the other way
SB475 · Criminal Procedure – Evidence – Protecting Artists' Creative Expression (PACE Act)
In plain English Requires courts to make specific findings before allowing a defendant's creative expression as evidence, with an exception for juvenile mental health evaluations.
Third Reading Passed · 2026-04-09 · Passed 32–10 · most Republicans voted the other way
HB1026 · Business Regulation – Rounding Cash Transactions – Authorization
In plain English Allows merchants to round cash transaction prices or change amounts in a specified manner and clarifies tax treatment of rounded amounts.
Third Readings Passed with Amendments · 2026-04-09 · Passed 32–11 · most Republicans voted the other way
HB1135 · Health Occupations – Pharmacists – Vaccination Orders
In plain English Allows pharmacists to order certain vaccinations for people at least 3 years old without administering them.
Third Reading Passed · 2026-04-08 · Passed 33–9 · most Republicans voted the other way
SB475 · Criminal Procedure – Evidence – Protecting Artists' Creative Expression (PACE Act)
In plain English Requires courts to make specific findings before allowing a defendant's creative expression as evidence, with an exception for juvenile mental health evaluations.
Third Reading Passed · 2026-03-23 · Passed 33–10 · most Republicans voted the other way
SB40 · Baltimore County Board of Education – Alterations of Elected Member Districts and Establishment of Redistricting Process
Third Reading Passed · 2026-03-19 · Passed 38–7 · most Republicans voted the other way
SB893 · Business Regulation – Rounding Cash Transactions – Authorization
In plain English Allows merchants to round cash transaction prices or change amounts in a specified manner and excludes rounded amounts from sales tax.
Third Reading Passed · 2026-03-18 · Passed 37–9 · most Republicans voted the other way
SB773 · Health Occupations – Pharmacists – Vaccination Orders
In plain English Allows pharmacists to order certain vaccinations for people at least 3 years old without administering them.
Third Reading Passed · 2026-03-12 · Passed 33–12 · most Republicans voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
HB1222 · Prince George's County – State's Attorney Salary – Alteration PG 426-26
In plain English Increases the Prince George's County State's Attorney salary to $250,000, excluding the current officeholder.
Committee Amendment 513122/1 Rejected · 2026-04-13 · Failed 22–22
SB841 · Utility RELIEF (Reducing Energy Load Inflation for Everyday Families) Act
Floor Amendment 813629/1 (Senator Jennings) Adopted · 2026-04-02 · Failed 20–19
SB626 · Sex Designation on Certificates of Birth, Licenses, and Identification Cards and Birth Information Histories (Birth Certificate Modernization Act)
Motion to Postpone Indefinitely (Senator Hershey) Rejected · 2026-03-20 · Failed 20–21
HB154 · Open Meetings Act – County Boards of Education – Enhanced Requirements (Local Boards of Education Transparency Act)
Floor Amendment 793028/1 (Senator Ready) Adopted · 2026-04-08 · Passed 24–20
SB284 · Budget Reconciliation and Financing Act of 2026
Floor Amendment 673521/1 (Senator Hershey) Rejected · 2026-03-17 · Failed 20–24
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.
Mary-Dulany JamesDemocrat · District 34 · 229 shared contested votes
34%
Ron WatsonDemocrat · District 23 · 266 shared contested votes
17%
Carl JacksonDemocrat · District 8 · 254 shared contested votes
15%
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 (15 in all). Gaps are months the chamber wasn’t voting.
← Maryland Delegation
NayYeaYeaYeaYeaYeaYeaNayNayYeaNayYeaYeaNayNayYeaYeaYeaYeaYeaNayYeaYeaYeaYeaYeaYeaYeaNayYeaYeaYeaYeaNayNayYeaYeaYeaYeaYeaYeaNayNayYeaNayNayYeaYeaYeaYeaYeaYeaYeaNayNayYeaYeaYeaYeaYea
Their bills, from filing to law
Bills Johnny Mautz 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.
Introduced20
Out of committee8
Passed one chamber8
Passed both chambers5
Became law5
Never left committee12
For comparison, the median Republican member of the Senate has 5 bills that became law this session.
What their bills are about
Reports 4Health 4Time 4Natural Resources, Department of 4Committees and Commissions 3Sunset 3
Maryland Estate Tax – Qualified Agricultural Property – Transfer to Limited Liability Company
In plain English Allows qualified recipients to transfer agricultural property to a limited liability company without triggering Maryland estate tax recapture if the company is owned only by qualified recipients and used for farming at least 10 years.
Official synopsis: Authorizing, for purposes of determining the Maryland estate tax, a qualified recipient to transfer ownership of qualified agricultural property to a limited liability company; providing that qualified agricultural property transferred in accordance with the Act is not subject to estate tax recapture if the ownership…
Became lawApproved by the Governor – Chapter 551 · 2026-05-12
State Board of Physicians – Delegation of Duties – Alterations
In plain English Requires registration with the State Board of Physicians to operate limited X-ray machines and allows physician assistants to perform X-ray duties under certain circumstances.
Official synopsis: Requiring an individual to be registered with the State Board of Physicians to perform limited X-ray machine operations in the State; establishing certain disciplinary procedures for limited X-ray machine operators; recodifying certain provisions of law related to registered cardiovascular invasive specialists and supervised medical graduates;…
Became lawApproved by the Governor – Chapter 214 · 2026-04-28
Health Insurance – Graduate-Level Clinical Interns – Required Reimbursement
Establishing that insureds and any other persons covered by certain health insurance policies, contracts, or certificates are entitled to reimbursement for the services rendered by a graduate-level counseling, social work, or psychology clinical intern under certain circumstances.
Became lawApproved by the Governor – Chapter 43 · 2026-04-14
Natural Resources – Invasive Blue Catfish Pilot Program – Alterations
Altering the Invasive Blue Catfish Pilot Program to include the Blue Catfish Gill Net Program and any other program the Department of Natural Resources considers effective in curbing the spread of the blue catfish in the Chesapeake Bay and its tributaries; and requiring the Department…
Became lawApproved by the Governor – Chapter 42 · 2026-04-14
Maryland-Ireland Trade Commission – Membership and Termination – Altered and Extended
Altering the membership of the Maryland-Ireland Trade Commission and extending the termination of the Commission.
Became lawApproved by the Governor – Chapter 36 · 2026-04-14
Maryland Department of Health – Study on Maryland Medical Assistance Program Reimbursement of Hospice Room and Board Services
Requiring the Maryland Health Care Commission and the Maryland Medical Assistance Program jointly to study the impact of requiring the Maryland Medical Assistance Program to provide reimbursement for room and board services provided by a hospice house; and requiring the Department to report its findings…
Passed one chamberReferred Rules and Executive Nominations · 2026-04-11
Maryland Medical Assistance Plan and Health Insurance – Pharmacogenomic Testing – Required Coverage
Requiring, beginning July 1, 2027, the Maryland Medical Assistance Program and certain health insurers, nonprofit health services plans, and health maintenance organizations to provide coverage for single-gene and multigene pharmacogenomic testing in certain circumstances.
Passed one chamberHearing 4/02 at 1:00 p.m. · 2026-03-25
Health Occupations – Practice of Audiology – Definition
Altering the definition of "practice audiology", including by clarifying that the ordering and performing of certain scanning and imaging are included as these procedures relate to auditory or vestibular conditions in the human ear.
Passed one chamberHearing 3/25 at 1:00 p.m. · 2026-03-17
Motor Vehicles – Enhanced Tinted Windows – Medical Exemption
Authorizing an out-of-state physician licensed to practice medicine to issue a certification for a medical exemption for enhanced tinted motor vehicle windows; and repealing the time limit applicable to a certification for a medical exemption for enhanced tinted motor vehicle windows.
Not out of committeeHearing 3/10 at 1:15 p.m. · 2026-03-09
Vehicle Laws – Required Security – Exemption of Farm Area Motor Vehicles
Exempting farm area motor vehicles from the requirement for a motor vehicle to carry required security.
Not out of committeeHearing 3/10 at 1:15 p.m. · 2026-03-09
Vehicle Emissions Inspection Program – Exemption for Vehicles Formerly Registered as Historic
Exempting a vehicle that was registered as a historic motor vehicle before July 1, 2025, from the requirements of the Vehicle Emissions Inspection Program under certain circumstances.
Not out of committeeHearing 3/10 at 1:15 p.m. · 2026-03-09
Health Insurance – Lyme Disease and Related Tick-Borne Illnesses – Long-Term Antibiotic Treatment
Requiring certain insurers, nonprofit health service plans, and health maintenance organizations to provide certain coverage for the full length of long-term antibiotic treatment of Lyme disease and related tick-borne illnesses under certain circumstances; and prohibiting certain insurers, nonprofit health service plans, and health maintenance organizations…
Not out of committeeHearing 3/13 at 1:00 p.m. · 2026-03-06
Natural Resources – Development of Abandoned Railroad Corridors – Proof of Title
Requiring the Department of Natural Resources, prior to undertaking the development of a railroad corridor property for recreational use, to establish through a title search that the State owns the property in fee simple.
Not out of committeeFirst Reading Senate Rules · 2026-02-24
Vehicle Laws – Causing Serious Injury or Death of Vulnerable Individual
Altering the definition of "vulnerable individual" to exclude an individual who is riding a motorcycle for purposes of the prohibition on causing the serious physical injury or death of a vulnerable individual as a result of operating a motor vehicle in violation of certain rules…
Not out of committeeHearing 3/04 at 1:00 p.m. · 2026-02-12
Behavioral Health Administration – Behavioral Health Program Relocation – Regulations
Requiring the Behavioral Health Administration to adopt regulations authorizing a behavioral health program to relocate to another site.
Not out of committeeHearing 3/10 at 1:00 p.m. · 2026-02-12
“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…
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Motion Rules Suspend Two Readings Same Day Const/Rule 24 (Senator Feldman) Adopted)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 943226/1 (Senator West) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 763427/1 (Senator Salling) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 393120/1 (Senator Ready) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 713626/1 (Senator Simonaire) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 473622/1 (Senator Gallion) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 213220/1 (Senator Hershey) Rejected)
HB2100 · 2026-08-04
Election Districts – General Assembly and Representatives in Congress (Third Reading Passed)
HB2101 · 2026-08-04
Arbitration Reform for State Employees Act of 2026 – Withdraw and Repeal of Duplicate Proposed Constitutional Amendment (Motion Rules Suspend Two Readings Same Day Const/Rule 24 (Senator Kagan) Adopted)
HB2101 · 2026-08-04
Arbitration Reform for State Employees Act of 2026 – Withdraw and Repeal of Duplicate Proposed Constitutional Amendment (Third Reading Passed)
HB862 · 2026-08-03
Railroads – Required Crew for Movement of Freight (Overridden)
HB423 · 2026-04-13
Prince George's County – Public High Schools – Drug Detection Products PG 501-26 (Third Reading Passed)
HB38 · 2026-04-13
Financial Institutions – Licensing of Affiliated Insurance Producer-Mortgage Loan Originators – Alterations (Third Reading Passed)
HB405 · 2026-04-13
Condominiums and Homeowners Associations – Governing Documents – Electric Vehicle Recharging Equipment (Third Reading Passed)
HB769 · 2026-04-13
State Board of Social Work Examiners – Provisional License to Practice Social Work – Established (Third Reading Passed)
HB1466 · 2026-04-13
Department of Housing and Community Development – Appraisal Gap From Historic Redlining Financial Assistance Program – Qualified Properties (Third Reading Passed)
HB547 · 2026-04-13
Income Tax – Enhanced Agricultural Management Equipment Subtraction Modification and Parent of a Stillborn Child Credit (Third Readings Passed with Amendments)
HB1554 · 2026-04-13
Sales and Use Tax – Electricity for Agriculture Purposes – Study and Report (Third Reading Passed)
HB1118 · 2026-04-13
Health, Health Insurance, and Health Occupations – Perinatal Behavioral Health Conditions (Third Reading Passed)
HB1091 · 2026-04-13
Health Insurance and Dental Plan Organizations – Dentists – Assignment of Benefits and Reimbursement of Nonpreferred Providers (Third Reading Passed)
HB107 · 2026-04-13
Motor Vehicles – Intelligent Speed Assistance System Pilot Program – Establishment (Third Reading Passed)
HB752 · 2026-04-13
Criminal Law – Theft and Fraud Crimes – Valuation and Forgery of Gift Cards (Third Reading Passed)
HB264 · 2026-04-13
Maryland Data Privacy and Protection Act of 2026 (Third Reading Passed)
HB1526 · 2026-04-13
Carroll County – Alcoholic Beverages – Class 1 Distillery On-Premises Consumption Permit (Third Reading Passed)
HB730 · 2026-04-13
Business Regulation – Maryland Franchise Registration and Disclosure Law – Alterations (Franchise Reform Act) (Third Reading Passed)
HB593 · 2026-04-13
Criminal Law – Interference With Critical Infrastructure or a Public Safety Answering Point (Third Reading Passed)
HB1267 · 2026-04-13
Patuxent Research Refuge and Beltsville Agricultural Research Center – Zoning Classification (Protecting Patuxent Research Refuge Act) (Third Reading Passed)
HB6 · 2026-04-13
Public Institutions of Higher Education – Pregnant and Parenting Students – Plan and Reporting (Third Reading Passed)
HB321 · 2026-04-13
Environment – Synthetic Turf Industry and Disposal Study – Deadline Extension (Third Reading Passed)
SB242 · 2026-04-13
Modernizing Civil Relief for Service Members Act (Third Reading Passed)
HB1387 · 2026-04-13
Maryland Automobile Insurance Fund – Fund Producer Commission Rate (Third Reading Passed)
HB611 · 2026-04-13
Prince George’s County – Alcoholic Beverages – Fees PG 317–26 (Third Reading Passed)
HB583 · 2026-04-13
Prince George’s County – Alcoholic Beverages – Notice of Issuance of Class C Per Diem Beer, Wine, and Liquor License PG 319–26 (Third Reading Passed)
HB246 · 2026-04-13
Video Tolls – Class G (Trailer) Vehicles – Liability (Third Reading Passed)
HB870 · 2026-04-13
Environment – Permit Applications for New Buildings – Notice (Large Buildings for Tomorrow Act) (Third Reading Passed)
HB1196 · 2026-04-13
Environment – Water Quality Testing – Secondary Maximum Contaminant Levels Action Plan (Third Reading Passed)
HB750 · 2026-04-13
Criminal Law – Obstruction or Interference With Exercise of Religious Beliefs – Prohibition (Third Reading Passed)
HB640 · 2026-04-13
Mandated Reports, Boards, and Commissions – Revisions (Third Reading Passed)
HB618 · 2026-04-13
Commercial Law – Self-Service Storage Facilities – Alterations (Third Reading Passed)
HB855 · 2026-04-13
Common Ownership Communities – Candidate or Proposition Signs – Display Period (Third Reading Passed)
HB357 · 2026-04-13
Municipalities – Election Dates – Reporting Requirements (Third Reading Passed)
SB18 · 2026-04-13
State Board of Social Work Examiners – Provisional License to Practice Social Work – Established (Third Reading Passed)
SB504 · 2026-04-13
Data Privacy – Consumer Data, Public Records, and Message Switching System (Data Privacy Act) (Third Reading Passed)
HB1530 · 2026-04-13
Higher Education – Undocumented Students – Out-of-State Tuition Exemption Eligibility (Motion Special Order until Next Session (Senator Ready) Rejected)
HB1530 · 2026-04-13
Higher Education – Undocumented Students – Out-of-State Tuition Exemption Eligibility (Third Reading Passed)
HB663 · 2026-04-13
Department of the Environment – Federal Environmental Policy – Reporting (Third Reading Passed)
HB850 · 2026-04-13
Home Builders – Open House – Sales Representative Disclosure Requirements (Third Reading Passed)
HB1587 · 2026-04-13
Gaming – Operation of Electronic Instant Bingo Machines and Report by State Lottery and Gaming Control Agency (Third Reading Passed)
HB1563 · 2026-04-13
Emergency Room Services and Post-Acute Care – Coverage and Facility Studies (Third Reading Passed)
HB1286 · 2026-04-13
Anne Arundel County – Alcoholic Beverages – Barbershop and Beauty Salon License (Third Reading Passed)
HB328 · 2026-04-13
Bicounty Commissions – Public Ethics – Financial Disclosure Statements PG/MC 105-26 (Third Reading Passed)
HB282 · 2026-04-13
Adult Protective Services – Modifications (Third Reading Passed)
HB732 · 2026-04-13
Baltimore County Code of Public Local Laws – 2025 Edition – Legalization (Third Reading Passed)
SB311 · 2026-04-13
Education – The Blueprint for Maryland's Future – Revisions (Third Reading Passed)
HB625 · 2026-04-13
Human-Relevant Research Fund – Collection of Contributions – Responsible Entity (Third Reading Passed)
HB1149 · 2026-04-13
State Finance – Claims of the State – Settlement (Third Reading Passed)
HB833 · 2026-04-13
Commission to Advance Lithium-Ion Battery Safety in Maryland – Reestablishment (Third Reading Passed)
HB456 · 2026-04-13
Howard County – Alcoholic Beverages – Gift Basket Permit Ho. Co. 2-26 (Third Reading Passed)
HB406 · 2026-04-13
Prince George's County – Alcoholic Beverages – Multiple Licenses Prohibition – Exceptions PG 313-26 (Third Reading Passed)
HB684 · 2026-04-13
Health Insurance – Material Changes to Provider Networks – Notification and Special Enrollment Period (Third Reading Passed)
Complete voting record from LegiScan (showing the 60 most recent of 1244 total roll-call votes this session).
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