Representative
Mary Isaacson
| Seat | House District 175 |
|---|---|
| Party | Democratic |
| Capitol office | Room 300 · Main Capitol |
| Mailing address | Room 300, Main Capitol Building P.O. Box 202175, Harrisburg, PA 17120 |
| Capitol phone | 717-783-8098 |
| Write to | misaacson@pahouse.net (official address) |
| Tenure | Serving since December 1, 2018 |
| Term limited | No term limits |
Committees 6
- House Transportation Committee Secretary standing
- House Consumer Protection, Technology and Utilities Committee standing
- House Education Committee standing
- House Environmental and Natural Resource Protection Committee standing
- House Ethics Committee standing
- House Liquor Control Committee standing
Bills, 2025–2026 session 35 as principal author · 222 as coauthor
- MeasureTitleStatusMomentum
- HR 64A Resolution designating the month of April 2025 as "Community College Month" in Pennsylvania in recognition of the…Passed a chamber100
- HB 2551An Act amending the act of April 9, 1929 (P.L.177, No.175), known as The Administrative Code of 1929, in powers and…In committee47
- HB 2237An Act amending the act of June 23, 1999 (P.L.159, No.22), known as the New Economy Technology Scholarship Act, further…In committee47
- HB 967An Act amending the act of December 17, 1968 (P.L.1224, No.387), known as the Unfair Trade Practices and Consumer…In committee47
- HB 558An Act amending the act of April 6, 1951 (P.L.69, No.20), known as The Landlord and Tenant Act of 1951, in creation of…Enacted100
- HB 559An Act amending the act of April 12, 1951 (P.L.90, No.21), known as the Liquor Code, in preliminary provisions, further…In committee37
- HB 1500An Act amending the act of March 10, 1949 (P.L.30, No.14), known as the Public School Code of 1949, in preliminary…In committee37
- HB 879An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, in riot, disorderly conduct…Out of committee34
- HB 603An Act amending the act of December 12, 1986 (P.L.1559, No.169), known as the Whistleblower Law, further providing for…Out of committee24
- HB 608An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, in riot, disorderly conduct…Out of committee24
- HB 1415An Act amending the act of May 1, 1984 (P.L.206, No.43), known as the Pennsylvania Safe Drinking Water Act, further…In committee24
- HB 620An Act amending the act of July 28, 1988 (P.L.556, No.101), known as the Municipal Waste Planning, Recycling and Waste…Out of committee24
- HB 572An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, in sexual offenses, providing…In committee23
- HB 887An Act amending Titles 18 (Crimes and Offenses) and 53 (Municipalities Generally) of the Pennsylvania Consolidated…In committee13
- HB 850An Act amending Title 58 (Oil and Gas) of the Pennsylvania Consolidated Statutes, in development, providing for…In committee13
All 35 bills as principal author ›
Coauthor of HB 1286, HB 1405, HB 2426, HR 12, HR 151, HR 167, HR 169, HR 172, HR 217, HR 221, HR 225, HR 231 and 210 more.
Bills and sponsors: Open States bulk data (public domain dedication), 2026-10-public.pgdump; status is read from the official actions. About the momentum score
Vote record, 2025–2026 Regular Session 1,190 roll calls
- DateMeasure & motionVoteResult
- October 21, 2026HB 2443 CONCURRENCEyesPassed 203–0
- October 21, 2026HB 1098 CONCURRENCEyesPassed 203–0
- October 21, 2026HB 369 CONCURRENCEyesPassed 192–11
- October 21, 2026SB 1431 FINAL PASSAGEyesPassed 203–0
- October 21, 2026SB 1328 FINAL PASSAGEyesPassed 197–6
- October 21, 2026HB 69 CONCURRENCEyesPassed 203–0
- October 21, 2026HR 563 House Resolution 563yesPassed 118–85
- October 21, 2026HR 563 A4670noFailed 100–103
- October 21, 2026HR 539 House Resolution 539yesPassed 203–0
- October 21, 2026HR 538 House Resolution 538yesPassed 202–1
Latest roll calls shown. Full voting record.
Roll calls: Open States (public data). Official record: palegis.us.
Effectiveness 2025–26 session
71st percentile
| Bills & joint resolutions authored | 33 |
|---|---|
| … passed committee / chamber / both | 11 / 6 / 0 |
| … became law | 0 |
| Carried in the other chamber (became law) | 0 (0) |
| Points vs. House majority average | 23 ÷ 20.55 = 1.12 |
| Most-authored topics | Courts & civil law (6), Criminal justice & public safety (6), Budget & taxes (6) |
House rankings · How the score works. A count of bill progress, not a judgment of the member's work.
Closest allies co-authorship, 2025–26
Most bills written together
- Ben Sanchez DHouse 153 180
- Carol Hill-Evans DHouse 95 170
- Joe Hohenstein DHouse 177 134
- Roni Green DHouse 190 126
- Tarik Khan DHouse 194 116
- Chris Pielli DHouse 156 115
- Ben Waxman DHouse 182 111
- Danielle Otten DHouse 155 110
- José Giral DHouse 180 108
- Johanny Cepeda-Freytiz DHouse 129 105
“Written together” = 2025–2026 session bills and joint resolutions on which both are principal author or coauthor (measures with more than 60 sponsors are left out). Sharing bills does not imply a personal or political alliance.
District 175
- Counties
- Philadelphia
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- Senate members sharing a county
- Nikil Saval (1), Tina Tartaglione (2), Sharif Street (3), Art Haywood (4), Joe Picozzi (5), Vincent Hughes (7), Tony Williams (8)
Official district map: see the official House page.
Lobbyist reports naming this member 2025–2026
No lobbyist expenditure reports naming this member are in our data.
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Source
Copied from https://www.palegis.us/house/members/bio/1857/rep-isaacson on November 2, 2026, through Open States people data (CC0), checked against official legislature rosters. Not endorsed by the Pennsylvania House of Representatives.