Maryland House of Delegates · District 21

Mary Lehman

Democratic
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Votes with the Speaker 99% On 1,866 contested votes where both voted · 99% on all votes Votes with own party 99% Partisan rank: 33 of 140 in the House of Delegates (tied with 62 others) Didn't vote at roll call 0.5% 27 of 5,565 roll calls · 13 of them excused
Bills passed 17 51 sponsored · 17 became law · Rank 27 of 141 in the House of Delegates (tied with 4 others) Bills that became law 17 of 17 passed · 0 vetoed

Where they sit

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

How these numbers work →
Lehman
← Most liberalThe aisleMost conservative →
Votes with DemocratsCrosses party linesVotes with Republicans

Mary Lehman'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

Maryland House of Delegates31stpercentile
More liberal than 69% of the Maryland House of Delegates.
Most liberalMost conservative
44th most liberal of 140

On the November 3 ballot

Running for Maryland House of Delegates District 21.

Also on the ballot: Ben Barnes (Democratic), Joseline Peña-Melnyk (Democratic)

Who's on your Nov. 3 ballot for the Legislature →

The scores

How these numbers work →
Votes with the Speaker
99%
Democrats Republicans 0%100%

Each tick is a current delegate, by party; the dot is Mary Lehman.

On 1,866 contested votes where both voted99% on all 5,457 votes where both voted
Votes with own party
99%
Democrats Republicans 45%100%

Each tick is a current delegate, by party; the dot is Mary Lehman.

On 1,771 party-line votesPartisan rank: 33 of 140 in the House of Delegates (tied with 62 others)32 delegates vote with their party more often

Bills

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

How these numbers work →
Bills
Sponsored51
Passed both chambers17
Became law17
Vetoed by the Governor0

Rank by bills passed: Rank 27 of 141 in the House of Delegates (tied with 4 others) · 27 of 102 Democrats (tied with 4 others)

A bill's sponsor is its primary sponsor, the first name on it; co-sponsors aren't counted. Bills a committee, a county delegation, or the Speaker or Senate President on the Governor's behalf introduced aren't credited to anyone.

Bills that passed both chambers

BillResultFinal action
HB 153
Residential Rental Apartments - Air-Conditioning Requirement		 Became law
passed as SB 12		 March 30, 2026
HB 200
Sale of Residential Real Property - Required Flood Risk Disclosure		 Became law March 27, 2026
HB 321
Environment - Synthetic Turf Industry and Disposal Study - Deadline Extension		 Became law March 25, 2026
HB 1267
Patuxent Research Refuge and Beltsville Agricultural Research Center - Zoning Classification (Protecting Patuxent Research Refuge Act)		 Became law March 25, 2026
HB 753
Tax Sales - Homeowner Protections - Revisions		 Became law March 21, 2026
HB 902
Environment - Coal Combustion By-Products - Fees, Coordinating Committee, and Regulations		 Became law
passed as SB 425		 March 25, 2025
HB 76
Public Safety Officer - Performance of Duties - Death Benefits		 Became law
passed as SB 396		 March 24, 2025
HB 337
State Lottery Fund - Laurel Race Course - Local Impact Aid		 Became law March 24, 2025
HB 384
Maryland Disability Service Animal Program - Established		 Became law March 21, 2025
HB 798
Opioid Restitution Fund - Interactive Dashboard		 Became law March 15, 2025
HB 420 (2024)
State and Local Parks - Play Area Accessibility - Recreation Communication Boards Pilot Program		 Became law March 26, 2024
HB 193 (2024)
Anne Arundel County - Speed Limits - Establishment		 Became law March 26, 2024
HB 457 (2024)
Environment - Synthetic Turf - Disclosure and Study		 Became law March 25, 2024
HB 601 (2024)
Street Racing and Exhibition Driving – Prohibited Acts, Enforcement, and Penalties		 Became law March 14, 2024
HB 113 (2024)
Vehicle Laws - Horse Riding - Helmet Requirement for Minors		 Became law March 14, 2024
HB 608 (2023)
Human Relations - Housing Discrimination - Service Dogs		 Became law March 27, 2023
HB 36 (2023)
Real Property – Actions to Repossess – Proof of Rental Licensure		 Became law March 24, 2023

Budget projects

Maryland's budget bill doesn't say which legislator asked for an item, so there's no budget figure for Maryland legislators.

Contested votes where they split

3 against the Speaker; 3 against most of their party.

DateBill and motion Their voteSpeakerMost of their party
March 12, 2024 HB 398: Prince George's County - Taxes on Telecommunications Services - Use of Revenue PG 406-24
Third Reading		 Nay Yea Yea
March 12, 2024 HB 396: Prince George's County - Sales and Use Tax on Energy and Fuel - Use of Revenue PG 407-24
Third Reading		 Nay Yea Yea
April 6, 2023 SB 411: Prince George's County - Judges of the Orphans' Court - Compensation
Third Reading		 Nay Yea Yea

Every roll call

How Mary Lehman voted on each of the 5,565 floor roll calls while in office, newest first.

DateVoteTheir vote Most of their partySpeakerYeas–nays
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Contested and party-line votes link to their own pages; the rest link to the official record.

Contact, committees and caucuses

Contact

Official page
mgaleg.maryland.gov
Email
mary.lehman@house.maryland.gov
Capitol office
Room 163, Lowe House Office Building 6 Bladen St., Annapolis, MD 21401
410-841-3114

Committees

  • Audit and Evaluation
  • Committee on Ending Homelessness
  • Government, Labor and Elections

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

Source: the Maryland General Assembly's floor vote records, Jan. 11, 2023 to Aug. 4, 2026. How these numbers work · Corrections