Nonpartisan · Data from OpenStates / Plural Policy · Illinois
Democratic
· Representative
Theresa Mah
Represents District 24 in the House of Representatives.
Votes with Democrats
100%
on 670 party-line votes · House Democrats median 99%
Cast a vote
99%
Yea or Nay on 3,181 of 3,227 roll calls · House median 98%
Their bills that became law
18 of 39
as a primary sponsor, this session · Democrats median 15.5
Roll calls on record
3,227
104th General Assembly
Votes and bills updated Oct 15, 2026 from LegiScan (CC BY 4.0), which republishes the legislature’s own records. Profile details from OpenStates / Plural Policy. Figures cover 104th General Assembly.
How Theresa Mah 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 Theresa Mah 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. Theresa Mah is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
0 of 670 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.
HR0668 · AIRLINES-MIN. SEAT STANDARDS
In plain English Urges airlines to adopt minimum seating standards for width and legroom, and calls on federal regulators to study and establish such standards.
House Consumer Protection Committee · 2026-05-12 · Passed 5–3
HR0447 · PASS-IL HB3652
House Public Health Committee · 2025-10-28 · Passed 5–3
SB0042 · VEH CD-CANNABIS IN VEHICLE
House Judiciary – Criminal Committee · 2025-05-09 · Passed 8–6
HB3332 · CD CORR-SENTENCING REVIEW
Third Reading in House · 2025-04-10 · Failed 49–51
HB3021 · CONSUMER FRAUD-AI DECEPTION
In plain English Requires businesses to clearly disclose when consumers are interacting with artificial intelligence rather than a human representative in commercial transactions.
House Consumer Protection Committee · 2025-04-08 · Passed 5–3
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.
Kevin SchmidtRepublican · District 114 · 548 shared contested votes
30%
Brandun SchweizerRepublican · District 104 · 499 shared contested votes
29%
Jennifer SanalitroRepublican · District 48 · 447 shared contested votes
29%
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 (46 in all). Gaps are months the chamber wasn’t voting.
← Illinois Delegation
YeaYeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNVYeaYeaYea
Their bills, from filing to law
Bills Theresa Mah 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.
Introduced39
Out of committee25
Passed one chamber20
Passed both chambers18
Became law18
Never left committee14
For comparison, the median Democratic member of the House has 15.5 bills that became law this session.
CONSTRUCTION-SANITARY REQS
Reinserts the provisions of the introduced bill with the following changes. Adds definitions of the terms "construction industry", "employee", and "employer". Makes changes in provisions that establish sanitary safety standards for construction workers who menstruate, express milk, or both. Adds provisions that make it unlawful…
Became lawPublic Act . . . . . . . . . 104-0850 · 2026-08-21
WHOLESALE DRUG DISTRIBUTORS
In plain English Requires virtual wholesale drug distributors to obtain a license and sets requirements for their operations, including contracting rules and compliance standards.
Official synopsis: Amends the Wholesale Drug Distribution Licensing Act. Defines "virtual wholesale distributor". Provides that every virtual wholesale distributor that engages in virtual drug distribution of prescription drugs shall be licensed by the Department of Financial and Professional Regulation. Provides that a virtual wholesale distributor shall only…
Became lawPublic Act . . . . . . . . . 104-0745 · 2026-07-31
SOCIAL WORK LICENSURE REQS
Reinserts the provisions of the introduced bill with the following changes. In provisions concerning qualifications for licensure as a licensed social worker, provides that the Department of Financial and Professional Regulation may grant a waiver for or an extension of the 4-year time period under…
Became lawPublic Act . . . . . . . . . 104-0702 · 2026-07-31
ASSISTED LIVING-DEMENTIA
In plain English Allows physician assistants and advanced practice registered nurses to conduct and approve assessments for assisted living residents with dementia, instead of only physicians.
Official synopsis: Amends the Assisted Living and Shared Housing Act. In provisions concerning assessment and service plan requirements, provides that a comprehensive assessment shall be completed by a physician, a physician assistant, or an advanced practice registered nurse (instead of only a physician). In provisions concerning Alzheimer…
Became lawPublic Act . . . . . . . . . 104-0641 · 2026-07-24
REDUCING BARRIERS TO LICENSURE
In plain English Allows incarcerated people to have license applications processed, changes how criminal convictions affect professional licensure eligibility, and makes related changes to licensing records and procedures.
Official synopsis: Amends the Department of Professional Regulation Law of the Civil Administrative Code of Illinois. Makes changes in provisions concerning definitions; oaths, subpoenas, and penalties; applicants with criminal convictions; qualification for licensure or registration; health care worker licensure actions; automatic suspension of a health care worker's…
Became lawPublic Act . . . . . . . . . 104-0558 · 2026-07-10
HEALTH CARE FACILITY PLANNING
Reinserts the provisions of the engrossed bill with the following changes. Removes provisions concerning the consideration by the Health Facilities and Services Review Board of specified permits and exemptions. Makes changes in provisions concerning the construction, modification, or establishment of health care facilities or acquisition…
Became lawPublic Act . . . . . . . . . 104-0557 · 2026-07-10
$PUBLIC HEALTH-CLINICS
Appropriates $15,000,000 from the General Revenue Fund to the Department of Public Health for continued funding to the Illinois Association of Free and Charitable Clinics. Effective July 1, 2026.
Not out of committeeRule 19(b) / Re-referred to Rules Committee · 2026-07-01
MEMORIAL-PUI YIP CHIU
Mourns the passing of Pui Yip Chiu of Chicago.
Became lawResolution Adopted · 2026-06-01
BANNER WHOLESALE DAY
In plain English Designates June 13, 2026 as Banner Wholesale Day in Illinois to recognize the company's centennial anniversary.
Official synopsis: Declares June 13, 2026 as Banner Wholesale Day in the State of Illinois in recognition of the company's deep roots and lasting impact on the City of Chicago and the State's grocery industry. Congratulates the Saltzman family and the entire team at Banner Wholesale Grocers…
Became lawResolution Adopted · 2026-05-28
FRAUD PREVENTION MONTH
In plain English Declares April 2026 as Fraud Prevention Month in Illinois and encourages residents to learn about scams and support fraud prevention efforts.
Official synopsis: Declares April 2026 as Fraud Prevention Month in the State of Illinois and encourages all Illinoisans to learn the red flags of scams and to support community and advocacy efforts that help prevent scams, protect consumers, and assist fraud victims. States that preventing fraud is…
Became lawResolution Adopted · 2026-05-27
MARK-TO-MARKET TAX ACT
Creates the Extremely High Wealth Mark-to-Market Tax Act. Provides that a resident taxpayer with net assets worth $1,000,000,000 or more shall recognize gains or losses as if each asset owned by that taxpayer had been sold for its fair market value on December 31 of…
Not out of committeeAdded Co-Sponsor Rep. La Shawn K. Ford · 2026-05-22
CO2 PIPELINES-EMINENT DOMAIN
Amends the Public Utilities Act. In provisions concerning the exercise of eminent domain powers by a public utility, provides that an owner or operator of a pipeline designed, constructed, and operated to transport carbon dioxide to which the Illinois Commerce Commission has granted a certificate…
Not out of committeeReferred to Rules Committee · 2026-05-21
PSILOCYBIN ADVISORY BOARD
Reinserts the provisions of the introduced bill, as amended by Senate Amendment No. 2, with the following changes. In a provision concerning the members of the Illinois Psilocybin Advisory Board, provides that if there is a vacancy for any reason, the applicable appointing authority shall…
Passed one chamberRule 19(a) / Re-referred to Rules Committee · 2026-05-15
CONSTRUCTION-SANITARY REQS
In plain English Requires construction sites with 10 or more workers to provide separate toilets for women and individuals who menstruate, and mandates sanitary conditions and lactation accommodations for construction workers.
Official synopsis: Amends the Construction Site Temporary Restroom Facility Act. Changes the Act's short title to the Construction Site Temporary Restroom Facility and Sanitary Conditions for Menstruation and Lactation Act. Repeals a provision which specifies that separate toileting facilities are not required for males and females if…
Out of committeeAdded Co-Sponsor Rep. Kevin John Olickal · 2026-05-13
UTILITY-RECOVERABLE EXPENSES
Amends the Public Utilities Act. In provisions concerning expenses that are recoverable by a public utility, provides that the Illinois Commerce Commission shall not consider as an expense of any public utility company, for the purpose of determining any rate or charge, any amount expended…
Not out of committeeAdded Co-Sponsor Rep. Lilian Jiménez · 2026-04-23
“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.
SB3731 · 2026-05-31
FIRST 2026 GENERAL REVISORY (House Third Reading)
HB5228 · 2026-05-31
WORK COMP-STATE LICENSURE (House Concurrence)
SB3398 · 2026-05-31
CIV PRO-TENANTS IN COMMON (House Third Reading)
HB4203 · 2026-05-31
INS CD-CANCER SCREENINGS (House Concurrence)
HB5081 · 2026-05-31
VEH CD-ALTER SPEED LIMITS (House Concurrence)
HB5020 · 2026-05-31
JUV CT-EXTENDED JUR JUV PROS (House Concurrence)
SB3070 · 2026-05-31
EDUC-FOREIGN LANG ALTERNATIVE (House Third Reading)
HB3711 · 2026-05-31
PROFESSIONAL MISCONDUCT (House Health Care Licenses Committee)
HB3711 · 2026-05-31
PROFESSIONAL MISCONDUCT (House Concurrence)
HB4649 · 2026-05-31
FINANCIALLY EXPLOITED ADULT (House Concurrence)
SB0318 · 2026-05-31
BUSINESS-TECH (House Third Reading)
HB4534 · 2026-05-31
DCFS-ABUSED CHILD-GROOMING (House Concurrence)
HB3454 · 2026-05-31
EPINEPHRINE DELIVERY DEVICE (House Concurrence)
SB3393 · 2026-05-31
OSFM-CONTINUING EDUCATION (House Third Reading)
HB5492 · 2026-05-31
PRESCRIPTION HORMONE THERAPY (House Concurrence)
HB1810 · 2026-05-31
INCARCERATED-DISABILITIES (House Concurrence)
HB5449 · 2026-05-31
CONDO CI ASSN-DISCLSOURE INFO (House Concurrence)
SB3208 · 2026-05-31
VEH CD-HUSBANDRY IMPLEMENT DEF (House Third Reading)
SB3019 · 2026-05-31
FINANCE-AGRICULTURAL BORROWER (House Third Reading)
HB5093 · 2026-05-31
HIGHER ED-IN-STATE TUITION (House Concurrence)
HB2335 · 2026-05-31
VEH CD-VARIOUS (House Concurrence)
HB5387 · 2026-05-31
IDFPR-VARIOUS LICENSES (House Health Care Licenses Committee)
HB5387 · 2026-05-31
IDFPR-VARIOUS LICENSES (House Concurrence)
HB4327 · 2026-05-31
AUDITOR GENERAL-340B AUDIT (House Concurrence)
SB3222 · 2026-05-31
VIDEO STREAMING AD VOLUME (House Third Reading)
HB5090 · 2026-05-31
PROCUREMENT-CONSTRUCTION (House Concurrence)
SB2715 · 2026-05-31
OPEN MTGS-STATEWIDE ASSOC (House Third Reading)
HB2564 · 2026-05-31
PEN CD-TRS-SALARY INCREASES (House Concurrence)
HB4966 · 2026-05-31
DCFS-SECURE ACT (House Concurrence)
HB5487 · 2026-05-31
LAW FIRM OWNERSHIP (House Concurrence)
SB3561 · 2026-05-31
BUY-NOW-PAY-LATER ACT (House Third Reading)
SB3211 · 2026-05-31
TELEDENTISTRY EXAMINATIONS (House Third Reading)
HB2371 · 2026-05-31
DENTAL INSURANCE ASSIGNABILITY (House Concurrence)
HB4160 · 2026-05-31
AUTO INS-RIGHT TO APPRAISAL (House Concurrence)
HB4379 · 2026-05-31
ADULT CHANGING STATIONS (House Concurrence)
SB0248 · 2026-05-31
CRIM PRO-POST-CONVICT PETITION (House Third Reading)
SB3113 · 2026-05-31
CREDIT UNIONS-VARIOUS (House Third Reading)
HB1700 · 2026-05-31
FUNDS-COMMUNITY REINVESTMENT (House Concurrence)
HB2949 · 2026-05-31
FY27 BUDGET IMPLEMENTATION (House Concurrence)
HB3811 · 2026-05-31
PRIVATE PROFESSIONAL GUARDIANS (House Concurrence)
HB3595 · 2026-05-31
INS CD-PET INSURANCE (House Concurrence)
HB4911 · 2026-05-31
VETERAN SCRATCH-OFF GAME (House Concurrence)
SB3255 · 2026-05-31
DHS-DSP PILOT PROGRAM (House Third Reading)
SB3777 · 2026-05-31
HUMAN RIGHTS-DISPARTE IMPACT (House Third Reading)
SB3645 · 2026-05-31
REGULATORY SUNSET-RADIATION (House Third Reading)
HB3275 · 2026-05-31
SCH-CARDIAC EMERGENCY RESPONSE (House Concurrence)
HB5295 · 2026-05-31
REPRODUCTIVE HEALTH PRIVACY (House Concurrence)
SB3707 · 2026-05-31
VISION BENEFIT MANAGERS (House Third Reading)
Complete voting record from LegiScan (showing the 60 most recent of 3227 total roll-call votes this session).
Boundaries: U.S. Census Bureau cartographic boundary files, simplified for display. For an exact address, use the legislature’s own district finder.
Who represents this ground
Illinois builds each Senate district from exactly two House districts: Senate 12 is House 23 plus House 24. The percentage is how often each of them ended up on the same side as Theresa Mah on bills both voted on (each one’s final Yea or Nay on the bill).
Celina VillanuevaState Senate 12 · Democratic
100%
Edgar GonzálezState House 23 · Democratic
100%
Theresa MahState House 24 · Democratic · this page
In Washington
Both U.S. senators represent the whole state. Which U.S. House member represents you depends on your address, so use the finder rather than a guess from district numbers.
Official Links
Follow Theresa Mah
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