Nonpartisan · Data from OpenStates / Plural Policy · Maryland
Democratic
· Delegate
Mary Lehman
Represents District 21 in the House of Delegates.
Votes with Democrats
100%
on 543 party-line votes · House Democrats median 99%
Cast a vote
99%
Yea or Nay on 1,480 of 1,488 roll calls · House median 97%
Their bills that became law
4 of 15
as a primary sponsor, this session · Democrats median 3
Roll calls on record
1,488
2026 Regular Session
Votes and bills updated Oct 10, 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 Mary Lehman 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 Mary Lehman 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. Mary Lehman is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
0 of 543 party-line votes.
They voted with most Democrats on every party-line vote this session.
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
HB774 · Landlord and Tenant – Residential Leases and Holdover Tenancies – Local Good Cause Termination (Good Cause Eviction)
Floor Amendment 603727/1 (Delegate Schmidt) Rejected · 2026-04-03 · Failed 37–71
SB284 · Budget Reconciliation and Financing Act of 2026
Floor Amendment 823321/1 (Delegate Hornberger) Rejected · 2026-03-25 · Failed 45–86
SB627 · Korean American Day
In plain English Requires the Governor to proclaim January 13 as Korean American Day annually and urge educational and cultural organizations to observe it with appropriate programs and activities.
Floor Amendment 993923/1 (Delegate Mangione) Rejected · 2026-04-13 · Failed 42–84
SB791 · Correctional Services and Criminal Procedure – Immigration Enforcement – Prohibitions (Community Trust Act)
In plain English Prohibits local correctional facilities and law enforcement from taking certain immigration enforcement actions, with specified exceptions.
Floor Amendment 483221/1 (Delegate Pippy) Rejected · 2026-04-11 · Failed 41–83
HB577 · Criminal Law – Firearm Crimes – Machine Gun Convertible Pistols
Floor Amendment 863721/1 (Delegate Schmidt) Rejected · 2026-04-07 · Failed 45–88
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.
Stuart SchmidtRepublican · District 33B · 527 shared contested votes
55%
Kevin HornbergerRepublican · District 35B · 555 shared contested votes
34%
Jim HinebaughRepublican · District 1A · 496 shared contested votes
21%
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 (8 in all). Gaps are months the chamber wasn’t voting.
← Maryland Delegation
YeaYeaYeaNayNayNayNayNayNayNayNayYeaNayNayYeaNayNayNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYea
Their bills, from filing to law
Bills Mary Lehman 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.
Introduced15
Out of committee7
Passed one chamber7
Passed both chambers4
Became law4
Never left committee8
For comparison, the median Democratic member of the House has 3 bills that became law this session.
What their bills are about
Environment, Department of the 6Reports 6Environment 5Counties 4Construction 3Highways 3
Tax Sales – Homeowner Protections – Revisions
In plain English Requires the Tax Sale Ombudsman to let homeowners designate representatives, withholds homes from tax sale for terminal illness or medical hardship, and raises the home value limit for protection eligibility to $450,000.
Official synopsis: Requiring the State Tax Sale Ombudsman to develop a process to allow a homeowner to designate a family member or another representative of the homeowner to communicate and work with the Ombudsman on the homeowner's behalf; requiring the dwelling of a homeowner to be withheld…
Became lawApproved by the Governor – Chapter 777 · 2026-05-26
Sale of Residential Real Property – Required Flood Risk Disclosure
In plain English Requires sellers of residential real property to provide buyers with a state flood risk disclosure form before signing a sales contract, beginning July 1, 2027.
Official synopsis: Requiring the Department of the Environment to develop, publish, and maintain a real property flood risk disclosure statement form that includes certain information about a property's flood risk and history; and requiring, beginning July, 1, 2027, a vendor of certain residential real property to provide…
Became lawApproved by the Governor – Chapter 776 · 2026-05-26
Patuxent Research Refuge and Beltsville Agricultural Research Center – Zoning Classification (Protecting Patuxent Research Refuge Act)
Requiring a certain local zoning authority to designate and maintain certain property in a zoning classification that restricts the uses in a certain manner under certain circumstances; requiring the appropriate authority to maintain certain property in a certain zoning classification that restricts the uses in…
Became lawApproved by the Governor – Chapter 541 · 2026-05-12
Environment – Synthetic Turf Industry and Disposal Study – Deadline Extension
In plain English Extends the deadline for the Department of the Environment to submit a report on synthetic turf industry and disposal from July 2026 to January 2027.
Official synopsis: Extending the deadline by which the Department of the Environment is required to submit a certain report on the synthetic turf industry and synthetic turf disposal from July 1, 2026, to January 15, 2027.
Became lawApproved by the Governor – Chapter 326 · 2026-04-28
Residential Rental Apartments – Air-Conditioning Requirement
In plain English Requires landlords to provide air-conditioning in apartment buildings with four or more units starting June 2026 for new construction and October 2026 for renovated units with replaced or upgraded electrical or heating systems.
Official synopsis: Requiring a landlord to provide air-conditioning to residential rental units in apartment buildings with four or more individual dwelling units in a certain manner beginning June 1, 2026, for newly constructed residential rental units and beginning October 1, 2026, for residential rental units that undergo…
Passed one chamberThird Reading Passed (90-30) · 2026-04-13
Criminal Law – Nondomesticated Animal Prohibitions – Alterations
Altering an exception to the prohibition against the possession of certain nondomesticated animals in the State by reducing from 10 days to 48 hours the amount of time a nonresident may travel through the State with an otherwise prohibited animal; repealing the exception to the…
Passed one chamberHearing 3/25 at 1:00 p.m. · 2026-03-20
State Buildings and State Highways – Collection and Disposal of Yard Waste
Prohibiting a person from disposing of yard waste collected on the grounds of a State building or State highway in single-use plastic container; requiring a person to collect yard waste on the grounds of a State building or State highway in a container that will…
Passed one chamberHearing 3/24 at 1:00 p.m. · 2026-03-13
State Highway Administration – Urban Core and Urban Center Traffic Control Devices – No Turn on Red
Requiring the State Highway Administration, by July 1, 2029, to install traffic control devices prohibiting a vehicle from making a right turn while facing a steady red signal at certain intersections on State highways in urban cores and urban centers; and authorizing the Administration to…
Not out of committeeWithdrawn by Sponsor · 2026-03-02
Maryland Public Ethics Law – Regulated Lobbyists – Reporting Requirements
Altering the dates by which a regulated lobbyist must file a certain report to the State Ethics Commission; and altering the contents of the report to include a list of each matter on which the regulated lobbyist performed lobbying activity, a description of the lobbyist's…
Not out of committeeHearing 3/06 at 1:00 p.m. · 2026-02-19
Coal Combustion By-Product Materials – Grant Program and Procurement Preference
Establishing the Coal Combustion By-Product Materials Grant Program in the Department of the Environment to award grants to eligible manufacturers of cement, concrete, or construction materials in the State that use coal combustion by-products sourced in the State; and requiring each unit of State government…
Not out of committeeHearing 3/04 at 1:00 p.m. · 2026-02-12
Municipal Elections – Qualified Electronic Transmission Systems – Authorization for Use
Authorizing a municipality to conduct a municipal election through the use of a qualified electronic transmission system; and prohibiting a municipality from using information received from a voter using a qualified electronic transmission system for certain purposes.
Not out of committeeHearing 2/25 at 1:00 p.m. · 2026-02-11
Education – Teacher Preparation Programs – English Language Learner Teacher Competency Requirements
Requiring a teacher preparation program to include certain training in English language learner-related teacher competencies and include English language learner-related teacher competencies in other courses throughout the curriculum; and requiring a teacher preparation program to include a certain course in teaching English language learners beginning…
Not out of committeeHearing 2/25 at 1:00 p.m. · 2026-02-11
Workgroup to Study Youth Camp and RV Park Emergency Preparedness – Established
Establishing the Workgroup to Study Youth Camp and RV Park Emergency Preparedness; requiring the Workgroup to study model local emergency preparedness policies in the State for youth camps and RV parks; and requiring the Workgroup to make recommendations regarding potential legislation to address statewide emergency…
Not out of committeeHearing 2/25 at 1:00 p.m. · 2026-02-10
Natural Resources – Riverine Siting and Design Criteria – Requirements
Requiring, beginning on certain dates, certain State and local projects for which 50% of project costs are funded with State funds to be in compliance with riverine siting and design criteria established under the Act; and requiring, on or before July 1, 2027, and in…
Not out of committeeHearing 2/25 at 1:00 p.m. · 2026-02-05
Investor-Owned Electric, Gas, and Gas and Electric Companies – Utility Rate Changes (Public Service Company Transparency Act)
Prohibiting certain electric, gas, and gas and electric companies from initiating a proceeding that may lead to a rate change unless the company provides customers with a certain notice; requiring certain electric, gas, and gas and electric companies to include a certain statement in each…
Not out of committeeHearing 2/10 at 1:00 p.m. · 2026-01-28
“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 (Third Reading Passed)
HB2101 · 2026-08-04
Arbitration Reform for State Employees Act of 2026 – Withdraw and Repeal of Duplicate Proposed Constitutional Amendment (Third Reading Passed)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Favorable with Amendments 923921/1 Adopted)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 403926/1 (Delegate Buckel) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 823729/1 (Delegate Pippy) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 183623/1 (Delegate R. Long) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 423426/1 (Delegate M. Morgan) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 633228/1 (Delegate Szeliga) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 163923/1 (Delegate Kipke) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 563421/1 (Delegate Griffith) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 703123/1 (Delegate R. Long) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Decision of the Chair upheld)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 623323/1 (Delegate Arikan) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 423321/1 (Delegate Grammer) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Decision of the Chair upheld)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 933322/1 (Delegate Arikan) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 963724/1 (Delegate Nawrocki) Rejected)
HB2100 · 2026-08-03
Election Districts – General Assembly and Representatives in Congress (Floor Amendment 283424/1 (Delegate M. Morgan) Rejected)
HB2101 · 2026-08-03
Arbitration Reform for State Employees Act of 2026 – Withdraw and Repeal of Duplicate Proposed Constitutional Amendment (Motion Rules Suspend Two Readings Same Day (Delegate Moon) Adopted)
HB2101 · 2026-08-03
Arbitration Reform for State Employees Act of 2026 – Withdraw and Repeal of Duplicate Proposed Constitutional Amendment (Decision of the Chair upheld)
HB862 · 2026-08-03
Railroads – Required Crew for Movement of Freight (Overridden)
SB204 · 2026-04-13
Public Schools – Maryland Civic Excellence Program – Established (Third Reading Passed)
HB107 · 2026-04-13
Motor Vehicles – Intelligent Speed Assistance System Pilot Program – Establishment (Third Reading Passed)
HB1118 · 2026-04-13
Health, Health Insurance, and Health Occupations – Perinatal Behavioral Health Conditions (Third Reading Passed)
SB360 · 2026-04-13
Criminal Law – Emergency Response Animal – Prohibited Actions Against (Third Reading Passed)
SB18 · 2026-04-13
State Board of Social Work Examiners – Provisional License to Practice Social Work – Established (Third Reading Passed)
SB111 · 2026-04-13
Vehicle Laws – Out-of-State Vehicles – Improper Registration (Third Reading Passed with Amendments)
SB335 · 2026-04-13
Landlord and Tenant – Discrimination in Housing for Income-Based Housing Subsidies and Positive Rental History Reporting (Third Reading Passed)
SB242 · 2026-04-13
Modernizing Civil Relief for Service Members Act (Third Reading Passed)
SB366 · 2026-04-13
Motor Vehicles – Intelligent Speed Assistance System Pilot Program – Establishment (Third Reading Passed)
SB187 · 2026-04-13
Correctional Services – Comprehensive Rehabilitative Prerelease Services – Female Incarcerated Individuals (Monica Cooper Prerelease Act) (Third Reading Passed)
SB937 · 2026-04-13
Landlord and Tenant – Residential Leases – Prospective Tenant Criminal History Records Check (Maryland Fair Chance Housing Act) (Floor Amendment 223521/1 (Delegate Schmidt) Rejected)
SB937 · 2026-04-13
Landlord and Tenant – Residential Leases – Prospective Tenant Criminal History Records Check (Maryland Fair Chance Housing Act) (Third Reading Passed with Amendments)
SB16 · 2026-04-13
Child Support – Earnings Withholdings Limits (Third Reading Passed)
SB820 · 2026-04-13
Alcohol, Tobacco, and Cannabis Commission – Unauthorized Consumable Products – Enforcement and Seizure (Third Reading Passed)
HB13 · 2026-04-13
Income Tax – Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-1 Specialists Act) (Third Reading Passed)
HB653 · 2026-04-13
Income Tax – Subtraction Modification for Public Safety Retirement Income – Amount (Third Reading Passed)
SB597 · 2026-04-13
Higher Education – Maryland Artificial Intelligence Partnership (Third Reading Passed)
HB1057 · 2026-04-13
Education – Artificial Intelligence – Guidelines, Professional Development, and Collaborative (Artificial Intelligence Ready Schools Act) (Third Reading Passed)
HB44 · 2026-04-13
Election Law – Petitions and Ballot Questions – Contents, Plain Language Requirement, and Procedures (Third Reading Passed)
SB461 · 2026-04-13
Supplemental Nutrition Assistance Program – Heat and Eat Program – Study (Third Reading Passed)
SB625 · 2026-04-13
Carbon Dioxide Capture, Removal, and Sequestration Projects – Regulations and Standards for Biochar and Wood Vault Technologies (Third Reading Passed)
SB807 · 2026-04-13
Alcoholic Beverages – Class 8 Farm Brewery Licenses (Third Reading Passed)
SB777 · 2026-04-13
Labor and Employment – Workforce Development – Hospital Employee Retraining and Placement Program and Workforce Development and Local Workforce Development Boards (Local Workforce Solutions Investment Act) (Third Reading Passed)
SB148 · 2026-04-13
Income Tax – Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-1 Specialists Act) (Third Reading Passed)
HB1532 · 2026-04-13
Utility RELIEF (Reducing Energy Load Inflation for Everyday Families) Act (Third Reading Passed)
SB420 · 2026-04-13
Public Institutions of Higher Education – Pregnant and Parenting Students – Plan and Reporting (Third Reading Passed)
HB1297 · 2026-04-13
Income Tax – Student Loan Debt Relief Tax Credit – Alterations (Third Reading Passed)
SB389 · 2026-04-13
Land Use – Transit-Oriented Development – Alterations (Maryland Transit and Housing Opportunity Act) (Third Reading Passed)
SB898 · 2026-04-13
Maryland Medical Assistance Program – Behavior Technicians – Reimbursement (Third Reading Passed)
SB852 · 2026-04-13
Anne Arundel County – Alcoholic Beverages – Barbershop and Beauty Salon License (Third Reading Passed)
SB431 · 2026-04-13
Fish and Wildlife – Endangered and Threatened Species and Migratory Birds – Regulations, Lists, Petitions, Essential Habitats, and Takings (Third Reading Passed)
SB388 · 2026-04-13
Economic Development – Delivering Economic Competitiveness and Advancing Development Efforts (DECADE) Act (Third Reading Passed)
HB564 · 2026-04-13
Pet Cremation and Burial Services – Requirements (Pet Cremation and Burial Services Consumer Protection Act) (Third Reading Passed)
SB720 · 2026-04-13
Education – Artificial Intelligence – Guidelines, Professional Development, and Collaborative (Artificial Intelligence Ready Schools Act) (Third Reading Passed)
SB739 · 2026-04-13
Climate Change, Homeowner's Insurance, and Emergency Management – Study (Third Reading Passed)
SB893 · 2026-04-13
Business Regulation – Rounding Cash Transactions – Authorization (Third Reading Passed)
SB459 · 2026-04-13
Procurement – Advertising – Maryland News Organizations (Local News for Maryland Communities Act of 2026) (Third Reading Passed)
SB1 · 2026-04-13
Public Safety – Law Enforcement Officers – Face Coverings and Identification (Third Reading Passed)
HB1533 · 2026-04-13
Public Health – Cosmetic Products – Enforcement and Penalties for Prohibited Ingredients (Crown and Care Act – Protecting Communities from Harmful Hair Chemicals) (Third Reading Passed)
Complete voting record from LegiScan (showing the 60 most recent of 1488 total roll-call votes this session).
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