Nonpartisan · Data from OpenStates / Plural Policy · Illinois
Seth Lewis
Republican · Senator

Seth Lewis

Represents District 24 in the State Senate.

Official site ↗ Email
Votes with Republicans
61%
on 214 party-line votes · Senate Republicans median 95%
Cast a vote
98%
Yea or Nay on 1,092 of 1,120 roll calls · Senate median 95%
Their bills that became law
17 of 50
as a primary sponsor, this session · Republicans median 12.5
Roll calls on record
1,120
104th General Assembly
Votes and bills updated Oct 9, 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 Seth Lewis 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 Seth Lewis 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. Seth Lewis is circled.

Always on the Republican sideAlways on the Democratic side
Times they broke with their party

84 of 214 party-line votes, most recent 10 shown.

HB4990 · HIGHER ED-PREVENT SEX VIOLENCE
Yea
Senate Third Reading · 2026-05-31 · Passed 42–13 · most Republicans voted the other way
HB4248 · ALGORITHMIC PRICE TRANSPARENCY
In plain English Bans businesses from using surveillance pricing and allows the Attorney General or State's Attorneys to enforce the prohibition.
Yea
Senate Third Reading · 2026-05-31 · Passed 41–16 · most Republicans voted the other way
SB3777 · HUMAN RIGHTS-DISPARTE IMPACT
In plain English Expands civil rights protections to ban employment and credit practices that have discriminatory effects based on citizenship, family status, work authorization, or criminal records unless justified by business necessity or substantial legitimate interest.
Yea
Senate Concurrence · 2026-05-31 · Passed 41–14 · most Republicans voted the other way
HB4379 · ADULT CHANGING STATIONS
Yea
Senate Third Reading · 2026-05-31 · Passed 46–12 · most Republicans voted the other way
HB5090 · PROCUREMENT-CONSTRUCTION
In plain English Allows transportation network drivers to organize and bargain collectively with rideshare companies, and requires companies to pay fees into a worker support fund.
Yea
Senate Third Reading · 2026-05-31 · Passed 42–12 · most Republicans voted the other way
SB3222 · VIDEO STREAMING AD VOLUME
Yea
Senate Concurrence · 2026-05-31 · Passed 47–10 · most Republicans voted the other way
SB3465 · CONSTRUCTION-SANITARY REQS
Yea
Senate Concurrence · 2026-05-31 · Passed 45–13 · most Republicans voted the other way
HB4571 · COUNTIES CD-AFFORDABLE HOUSING
Yea
Senate Third Reading · 2026-05-31 · Passed 44–14 · most Republicans voted the other way
HB4535 · SCH CD-E-LEARNING DAY-ELECTION
Yea
Senate Third Reading · 2026-05-30 · Passed 43–10 · most Republicans voted the other way
HB4758 · JOB APPLICATION-DRIVER LICENSE
In plain English Prohibits employers from refusing to hire or discriminating against applicants based on not having a driver's license unless driving is essential to the job.
Yea
Senate Third Reading · 2026-05-29 · Passed 41–15 · most Republicans voted the other way
Closest votes they cast

Roll calls decided by the fewest votes, one per bill.

SB2737 · CONSUMER FRAUD-GROCERY COUPONS
Nay
Senate Consumer Protection Committee · 2026-02-19 · Passed 5–3
SB2247 · MICROMOBILITY FIRE SAFETY
Nay
Senate Consumer Protection Committee · 2025-03-06 · Passed 5–3
SB1950 · SANITARY FOOD PREPARATION
Nay
Senate Concurrence · 2025-10-30 · Passed 30–27
SJR0039 · NAT. INFRASTRUCTURE BANK
Nay
Senate Financial Institutions Committee · 2025-05-28 · Passed 5–2
SB3340 · PROTECTIVE MEDICAL EQUIPMENT
In plain English Allows people to wear protective medical equipment in public places without disclosing health information and prohibits discrimination against those who do.
Nay
Senate Human Rights Committee · 2026-02-26 · Passed 6–2
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.

Doris TurnerDemocrat · District 48 · 194 shared contested votes
57%
Christopher BeltDemocrat · District 57 · 200 shared contested votes
54%
Suzy Glowiak HiltonDemocrat · District 23 · 213 shared contested votes
54%
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 (28 in all). Gaps are months the chamber wasn’t voting.

2025-01: 2 roll calls, 0 without a Yea or Nay2025-02: 11 roll calls, 0 without a Yea or Nay2025-03: 7 roll calls, 0 without a Yea or Nay2025-04: 240 roll calls, 5 without a Yea or Nay2025-05: 375 roll calls, 11 without a Yea or Nay2025-10: 35 roll calls, 1 without a Yea or Nay2026-02: 10 roll calls, 1 without a Yea or Nay2026-03: 42 roll calls, 1 without a Yea or Nay2026-04: 107 roll calls, 2 without a Yea or Nay2026-05: 291 roll calls, 7 without a Yea or NayJan 2025May 2026
← Illinois Delegation
Their bills, from filing to law

Bills Seth Lewis 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.

Introduced50
Out of committee22
Passed one chamber21
Passed both chambers17
Became law17
Never left committee28

For comparison, the median Republican member of the Senate has 12.5 bills that became law this session.

PRIVATE DETECTIVE BOARD MEMBER
In plain English Reduces the Private Detective and Security Board from 13 to 11 members and lowers the required experience for board members from 5 years to 3 years.
Official synopsis: Amends the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004. Reduces the number of members on the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Board from 13 to 11, removing one licensed locksmith and one licensed private…
Became lawPublic Act . . . . . . . . . 104-0601 · 2026-07-24
$DCEO-HYDROPONICS
Appropriates the amount of $10,000,000 from the General Revenue Fund to the Department of Commerce and Economic Opportunity for grants for the establishment of hydroponic agriculture facilities in existing vacant commercial buildings. Effective July 1, 2026.
Not out of committeePursuant to Senate Rule 3-9(b) / Referred to Assignments · 2026-07-02
$DCEO-WHEATON
Appropriates the sum of $750,000 from the General Revenue Fund to the Department of Commerce and Economic Opportunity for a grant to the City of Wheaton. Effective immediately.
Not out of committeePursuant to Senate Rule 3-9(b) / Referred to Assignments · 2026-07-02
DCEO-TAX CREDIT REPORT
Amends Illinois Income Tax Act. Creates a legacy tax credit for businesses that are headquartered in the State. Creates an employee tax credit and a collective bargaining employee tax credit. Effective immediately.
Not out of committeeAdded as Co-Sponsor Sen. Jason Plummer · 2026-06-29
CONGRATS-CRAIG BENES
Congratulates Superintendent Craig Benes on his retirement from Itasca School District 10. Thanks him for his commitment to education and to the State of Illinois.
Became lawResolution Adopted · 2026-06-01
CONGRATS-DR. JON BARTELT
Congratulates Dr. Jon Bartelt on his retirement as Superintendent of Schools for Bloomingdale School District 13. Expresses deep appreciation for his extraordinary contributions to education and the Bloomingdale community. Wishes him well in retirement.
Became lawResolution Adopted · 2026-06-01
NATIONAL SAFETY MONTH-SUPPORT
In plain English Expresses support for National Safety Month in June 2026 and urges Illinois citizens and businesses to practice safe and healthy behaviors.
Official synopsis: Expresses support for National Safety Month in June 2026 and strongly urges the citizens and businesses of Illinois to observe National Safety Month by practicing safe and healthy behaviors in all aspects of their lives.
Became lawResolution Adopted · 2026-05-29
DCEO-HYDROPONIC GRANT PROGRAM
Amends the Department of Commerce and Economic Opportunity Law of the Civil Administrative Code of Illinois. Provides that the Department of Commerce and Economic Opportunity shall, subject to appropriation, establish the Hydroponic Initiative Grant Program to help increase access to and the availability of healthy…
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
LOC GOV OFFICER'S SALARY
Amends the Property Tax Code. Provides that, elected and appointed supervisors of assessments who began a term of office on or after December 1, 2026, beginning December 1, 2029 shall be paid a salary in an amount equal to 80% of the amount paid to…
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
PAID LEAVE-LIMITATIONS
Amends the Paid Leave for All Workers Act. Provides that the definition of "employee" does not include: (1) an employee engaged in the transportation of goods through this State; (2) an employee who is free to decide what time the employee performs duties for an…
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
MUNI CD-HOTEL TAX-DUPAGE
Amends the Illinois Municipal Code. Provides that the municipal hotel operators' tax and municipal hotel use tax in Dupage County are repealed on January 1, 2029 (rather than January 1, 2027).
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
STATE'S ATTORNEY SALARY
Amends the Counties Code. Provides that, beginning July 1, 2026, each State's Attorney whose term begins after July 1, 2026 shall be compensated at the rate of 100% of the mean of the amount paid to the resident circuit judges in the county courthouse for…
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
PRIVATE DETECTIVE BOARD MEMBER
In plain English Reduces the Private Detective and Security Board from 13 to 11 members and lowers required experience from 5 years to 3 years.
Official synopsis: Amends the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004. Reduces the number of members on the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Board from 13 to 11, removing one licensed locksmith and one licensed private…
Passed one chamberRule 19(a) / Re-referred to Rules Committee · 2026-05-15
CONGRATS-BARTLETT HILLS GOLF
Congratulates Bartlett Hills Golf Club and Banquets on achieving its 100th anniversary.
Not out of committeeReferred to Assignments · 2026-04-21
COMMENDS-PHILIP/MAUREEN LEWIS
Commends Philip H. Lewis and Maureen V. Lewis for their years of community service to the people of Kane County and the State of Illinois.
Not out of committeeReferred to Assignments · 2026-04-14

“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.

SB0118 · 2026-05-31
DHS-GAMBLING DISORDERS (Senate Concurrence)
Passed · 58-0 · 2 roll calls that day, voted the same way on each
Yea
SB3258 · 2026-05-31
INS-RENTAL VEHICLE COVERAGE (Senate Concurrence)
Passed · 58-0
Yea
HB4304 · 2026-05-31
HIGHER ED STUDENT BILL OF RTS (Senate Third Reading)
Passed · 37-19
Nay
HB5024 · 2026-05-31
MUNI CD-DETENTION FACILITIES (Senate Third Reading)
Passed · 39-17
Nay
SB3398 · 2026-05-31
CIV PRO-TENANTS IN COMMON (Senate Concurrence)
Passed · 56-0 · 2 roll calls that day, voted the same way on each
Yea
SB3273 · 2026-05-31
UTILITIES-INTERCONNECTIONS (Senate Concurrence)
Passed · 58-0
Yea
SB3037 · 2026-05-31
DARK SKY ACT (Senate Concurrence)
Passed · 57-0
Yea
HB4571 · 2026-05-31
COUNTIES CD-AFFORDABLE HOUSING (Senate Third Reading)
Passed · 44-14
Yea
SB0318 · 2026-05-31
BUSINESS-TECH (Senate Concurrence)
Passed · 56-0 · 2 roll calls that day, voted the same way on each
Yea
SB3967 · 2026-05-31
NURSING HOME SURVEYOR REPORT (Senate Concurrence)
Passed · 58-0 · 2 roll calls that day, voted the same way on each
Yea
HJR0046 · 2026-05-31
LITTLE PALESTINE WAY (Senate Motion To Adopt)
Passed · 51-1
Yea
SB3465 · 2026-05-31
CONSTRUCTION-SANITARY REQS (Senate Concurrence)
Passed · 45-13
Yea
SB3208 · 2026-05-31
VEH CD-HUSBANDRY IMPLEMENT DEF (Senate Concurrence)
Passed · 56-0
Yea
SB3321 · 2026-05-31
LOC GOV-CREDIT CARD AGREEMENTS (Senate Concurrence)
Passed · 57-0
Yea
SB3019 · 2026-05-31
FINANCE-AGRICULTURAL BORROWER (Senate Concurrence)
Passed · 36-19 · 2 roll calls that day, voted the same way on each
Nay
SB3049 · 2026-05-31
NEWBORN METABOLIC SCREENING (Senate Concurrence)
Passed · 54-0
Yea
HB4327 · 2026-05-31
AUDITOR GENERAL-340B AUDIT (Senate Third Reading)
Passed · 57-0
Yea
SB3222 · 2026-05-31
VIDEO STREAMING AD VOLUME (Senate Concurrence)
Passed · 47-10
Yea
SB3020 · 2026-05-31
DOMESTIC VIOLENCE-HARASSMENT (Senate Concurrence)
Passed · 57-0 · 2 roll calls that day, voted the same way on each
Yea
HB5090 · 2026-05-31
PROCUREMENT-CONSTRUCTION (Senate Third Reading)
Passed · 42-12
Yea
SB3044 · 2026-05-31
DOMESTIC VIOLENCE ORDER-EFFECT (Senate Concurrence)
Passed · 57-0
Yea
SB3048 · 2026-05-31
DOMESTIC VIOLENCE-LETHALITY (Senate Concurrence)
Passed · 57-0 · 2 roll calls that day, voted the same way on each
Yea
SB2951 · 2026-05-31
MORTGAGE FORECLOSURE TIME (Senate Concurrence)
Passed · 58-0
Yea
HB4496 · 2026-05-31
PROCUREMENT-STATE LABS (Senate Third Reading)
Passed · 38-19
Nay
HB4379 · 2026-05-31
ADULT CHANGING STATIONS (Senate Third Reading)
Passed · 46-12
Yea
SB3113 · 2026-05-31
CREDIT UNIONS-VARIOUS (Senate Concurrence)
Passed · 50-6
Yea
SB3086 · 2026-05-31
STATE PERMITTED INVESTMENTS (Senate Concurrence)
Passed · 51-6
Yea
HB2949 · 2026-05-31
FY27 BUDGET IMPLEMENTATION (Senate Third Reading)
Passed · 37-18
Nay
HB2783 · 2026-05-31
CMS-MENSTRUAL PRODUCTS (Senate Third Reading)
Passed · 35-19
Nay
SB2762 · 2026-05-31
INS-SEIZURE DETECTION DEVICE (Senate Concurrence)
Passed · 53-5
Yea
HB4911 · 2026-05-31
VETERAN SCRATCH-OFF GAME (Senate Third Reading)
Passed · 58-0
Yea
SB3255 · 2026-05-31
DHS-DSP PILOT PROGRAM (Senate Concurrence)
Passed · 37-21
Nay
SB3777 · 2026-05-31
HUMAN RIGHTS-DISPARTE IMPACT (Senate Concurrence)
Passed · 41-14
Yea
SB3645 · 2026-05-31
REGULATORY SUNSET-RADIATION (Senate Concurrence)
Passed · 51-3
Yea
HB0957 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
Passed · 37-20
Nay
SB2427 · 2026-05-31
SCH CD-WIRELESS COMM DEVICE (Senate Concurrence)
Passed · 55-2 · 2 roll calls that day, voted the same way on each
Yea
HB4377 · 2026-05-31
PHA-NO WORK REQUIREMENTS (Senate Third Reading)
Passed · 35-19
Nay
SB2771 · 2026-05-31
SUICIDE PREVENTION INFORMATION (Senate Concurrence)
Passed · 57-0
Yea
SB3365 · 2026-05-31
MEDICARE/MEDICAID DUAL ELIGIBL (Senate Concurrence)
Passed · 59-0
Yea
HB5511 · 2026-05-31
DIGITAL AGE ASSURANCE (Senate Third Reading)
Passed · 57-0
Yea
HB0111 · 2026-05-31
$FY 2027 BUDGET (Senate Third Reading)
Passed · 37-21
Nay
HB4248 · 2026-05-31
ALGORITHMIC PRICE TRANSPARENCY (Senate Third Reading)
Passed · 41-16
Yea
HB3663 · 2026-05-31
COURT OF CLAIMS-AWARDS (Senate Third Reading)
Passed · 58-0
Yea
HB0958 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
Passed · 37-17
Nay
SB3798 · 2026-05-31
MENTAL HEALTH 9-1-1 CALLS (Senate Concurrence)
Passed · 58-0
Yea
SB0807 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Concurrence)
Passed · 58-0
Yea
SB3484 · 2026-05-31
VEH CD-PLATES-REGISTRATION (Senate Concurrence)
Passed · 48-7
Yea
SB2524 · 2026-05-31
VEH CD-DRIVER'S LICENSE (Senate Concurrence)
Passed · 58-0
Yea
HB0862 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
Passed · 49-8
Yea
SB2645 · 2026-05-31
FIRE STATION REHABILITATION (Senate Concurrence)
Passed · 57-0
Yea
HB0952 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
Passed · 57-0
Yea
HB4438 · 2026-05-31
STATE BEE DESIGNATION (Senate Third Reading)
Passed · 58-0
Yea
Complete voting record from LegiScan (showing the 60 most recent of 1120 total roll-call votes this session).
Voting data provided by LegiScan, licensed under CC BY 4.0.
House 47House 48

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 24 is House 47 plus House 48. The percentage is how often each of them ended up on the same side as Seth Lewis on bills both voted on (each one’s final Yea or Nay on the bill).

Seth LewisState Senate 24 · Republican · this page
Amy GrantState House 47 · Republican
78%
Jennifer SanalitroState House 48 · Republican
86%
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.

Capitol Office
📍Stratton Office Building Section A, Office Q, Springfield, IL 62706
District Office
📍416 E. Roosevelt Road Suite 111, Wheaton, IL 60187
District Office
📍994 W. Army Trail Road, Carol Stream, IL 60188
District-Mail Office
📍P.O. Box 8547, Bartlett, IL 60103
Official Links
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