Nonpartisan · Data from OpenStates / Plural Policy · Illinois
Votes with Democrats
98%
on 216 party-line votes · Senate Democrats median 100%
Cast a vote
85%
Yea or Nay on 1,153 of 1,354 roll calls · Senate median 95%
Their bills that became law
31 of 109
as a primary sponsor, this session · Democrats median 29.5
Roll calls on record
1,354
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 Willie Preston 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 Willie Preston 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. Willie Preston is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
4 of 216 party-line votes.
SB3391 · SCH CD-CHARTER SCHOOL-CLOSURE
In plain English Requires charter school operators to execute renewal agreements within 90 days, maintain closure security funds, and submit financial plans if in distress, with authority to appoint fiscal managers and withhold payments for noncompliance.
Senate Third Reading · 2026-05-21 · Passed 31–21 · most Democrats voted the other way
SB0025 · SWIMMING FACILITY COLD SPA
Senate Concurrence · 2025-10-30 · Passed 37–22 · most Democrats voted the other way
SB0025 · SWIMMING FACILITY COLD SPA
Senate Concurrence · 2025-10-30 · Passed 37–22 · most Democrats voted the other way
SB1950 · SANITARY FOOD PREPARATION
Senate Concurrence · 2025-10-30 · Passed 30–27 · most Democrats voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
SB2737 · CONSUMER FRAUD-GROCERY COUPONS
Senate Consumer Protection Committee · 2026-02-19 · Passed 5–3
SB2247 · MICROMOBILITY FIRE SAFETY
Senate Consumer Protection Committee · 2025-03-06 · Passed 5–3
SB2645 · FIRE STATION REHABILITATION
In plain English Allows the State Fire Marshal to award grants for fire station rehabilitation or construction to nonprofit fire departments, in addition to local government units.
Senate State Government Committee · 2026-05-30 · Passed 6–3
SB1950 · SANITARY FOOD PREPARATION
Senate Concurrence · 2025-10-30 · Passed 30–27
SB2039 · IBHE-DATA DASHBOARD REPORT
Senate Education Committee · 2025-05-30 · Passed 8–5
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.
Seth LewisRepublican · District 24 · 227 shared contested votes
51%
Darby HillsRepublican · District 26 · 226 shared contested votes
49%
John CurranRepublican · District 41 · 222 shared contested votes
41%
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 (201 in all). Gaps are months the chamber wasn’t voting.
← Illinois Delegation
YeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaNVNVYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaNVYeaYeaYeaYeaYeaYeaYea
Their bills, from filing to law
Bills Willie Preston 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.
Introduced109
Out of committee43
Passed one chamber41
Passed both chambers31
Became law31
Never left committee66
For comparison, the median Democratic member of the Senate has 29.5 bills that became law this session.
EDUC-FOREIGN LANG ALTERNATIVE
In plain English Allows high school students to complete two years of career and technical education instead of two years of foreign language to graduate, starting with the 2028-2029 school year.
Official synopsis: Amends the Courses of Study Article of the School Code. Provides that, as a prerequisite to receiving a high school diploma, each pupil entering the 9th grade beginning with the 2028-2029 school year must successfully complete either 2 years of foreign language courses or at…
Became lawPublic Act . . . . . . . . . 104-0814 · 2026-08-07
DIGITAL AGE ASSURANCE
Reinserts the provisions of Senate Amendment No. 1 with the following changes. Provides that, by July 1, 2028, a covered operator shall request from a covered manufacturer an age bracket signal for the primary user of an Internet-enabled device when the user downloads or launches…
Became lawPublic Act . . . . . . . . . 104-0664 · 2026-07-31
PARENT-TEACHER ADVISORY COMM
Amends the School Code. In a provision related to student discipline policies and the establishment of a parent-teacher advisory committee, defines "parent-teacher advisory committee" and requires teachers to be selected for a parent-teacher advisory committee in cooperation with the school district's teachers or, if applicable,…
Became lawPublic Act . . . . . . . . . 104-0648 · 2026-07-24
$DCEO-BCOE
Appropriates $2,000,000 from the General Revenue Fund to the Department of Commerce and Economic Opportunity for a grant to Black Contractors, Owners, and Executives to expand the organization statewide to help black business owners grow their businesses. Effective July 1, 2026.
Not out of committeePursuant to Senate Rule 3-9(b) / Referred to Assignments · 2026-07-02
$DCEO-NEIGHBORHOOD HOUSING
Appropriates $5,000,000 from the General Revenue Fund to the Department of Commerce and Economic Opportunity for a grant to Neighborhood Housing Services of Chicago for costs associated with funding equitable mortgage lending and homebuyer subsidies, foreclosure prevention services, and other support. Effective July 1, 2026.
Not out of committeePursuant to Senate Rule 3-9(b) / Referred to Assignments · 2026-07-02
BUSINESS-TECH
In plain English Changes the short title in the Uniform Commercial Code.
Official synopsis: Amends the Uniform Commercial Code. Makes a technical change in a Section concerning the short titles.
Out of committeeSenate Floor Amendment No. 1 Pursuant to Senate Rule 3-9(b) / Referred to Assignments · 2026-07-02
INS CD-STUTTERING COVERAGE
Amends the Illinois Insurance Code. In provisions concerning habilitative services for children, provides that, for any child under 19 years of age with an early acquired disorder that is diagnosed as a speech-language disorder, including stuttering, the required coverage shall include rehabilitative services in addition…
Became lawPublic Act . . . . . . . . . 104-0528 · 2026-06-26
PROHIBITED FOOD ADDITIVES
In plain English Starting January 1, 2027, Illinois bans manufacturing food products containing brominated vegetable oil, potassium bromate, propylparaben, or red dye 3, with sales banned starting January 1, 2028.
Official synopsis: Amends the Illinois Food, Drug and Cosmetic Act. Provides that, beginning January 1, 2027, a person or entity shall not manufacture a food product for human consumption that contains brominated vegetable oil, potassium bromate, propylparaben, or red dye 3. Provides that, beginning January 1, 2028,…
Passed one chamberRule 19(a) / Re-referred to Rules Committee · 2026-06-02
LITTLE PALESTINE WAY
In plain English Designates a section of Harlem Avenue in Chicago as Little Palestine Way to honor the Palestinian-American community.
Official synopsis: Designates Harlem Avenue in Chicago from 79th Street to 111th Street as Little Palestine Way in honor of the countless contributions of the Palestinian-American community. Commends both past and present generations of Palestinian-American leaders, entrepreneurs, educators, cultural organizers, women's organizations, faith leaders, and families for…
Became lawAdopted Both Houses · 2026-06-01
STATE GOVERNMENT-TECH
In plain English Requires contractors to pay subcontractors and material suppliers in full without offsets for both the Department of Transportation and Capital Development Board construction contracts.
Official synopsis: Amends the State Prompt Payment Act. Provides that, for construction contracts with the Department of Transportation or the Capital Development Board (instead of the Department of Transportation only), the contractor, subcontractor, or material supplier, regardless of tier, shall not offset, decrease, or diminish any payment…
Passed one chamberRule 3-9(a) / Re-referred to Assignments · 2026-06-01
HONORS-JUNETEENTH
Honors Juneteenth as a celebration of freedom, acknowledges the enduring contributions of African Americans to our State and nation, and reaffirms our commitment to justice, equality, and opportunity for all.
Not out of committeeReferred to Assignments · 2026-05-31
MUNI CD-POLICE EVALUATION
In plain English Removes a municipality's ability to evaluate police officers based on their points of contact.
Official synopsis: Amends the Illinois Municipal Code. Removes provisions allowing a municipality to evaluate a police officer based on the police officer's points of contact.
Passed one chamberAdded as Alternate Co-Sponsor Sen. Michael W. Halpin · 2026-05-30
SMALL BUSINESS TAX CREDIT
Amends the Small Business Job Creation Tax Credit Act. Renews the program for incentive periods beginning on or after July 1, 2025 and ending on or before June 30, 2032. Removes language concerning the Put Illinois to Work Program for the second series of incentive…
Not out of committeeAdded as Co-Sponsor Sen. Ram Villivalam · 2026-05-28
SCH CD-TECHNOLOGY GUIDANCE
Amends the School Code. Provides that the State Board of Education may provide statewide guidance to school districts concerning a workforce development curriculum or programming or both that can be adopted at the school district, school, or classroom level and that provides best practices for…
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
$DCEO-CONSERVATION CORPS
Appropriates $780,000 from the General Revenue Fund to the Department of Commerce and Economic Opportunity for a grant to the Cook County Forest Preserve District for the administration and operation of Greencorps Chicago and the Forest Preserve Experience Program. Effective July 1, 2026.
Not out of committeeRule 3-9(a) / Re-referred to Assignments · 2026-05-22
“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)
SB3258 · 2026-05-31
INS-RENTAL VEHICLE COVERAGE (Senate Concurrence)
HB4304 · 2026-05-31
HIGHER ED STUDENT BILL OF RTS (Senate Third Reading)
HB5024 · 2026-05-31
MUNI CD-DETENTION FACILITIES (Senate Third Reading)
SB3398 · 2026-05-31
CIV PRO-TENANTS IN COMMON (Senate Concurrence)
SB3273 · 2026-05-31
UTILITIES-INTERCONNECTIONS (Senate Concurrence)
SB3037 · 2026-05-31
DARK SKY ACT (Senate Concurrence)
HB4571 · 2026-05-31
COUNTIES CD-AFFORDABLE HOUSING (Senate Third Reading)
SB0318 · 2026-05-31
BUSINESS-TECH (Senate Concurrence)
SB3967 · 2026-05-31
NURSING HOME SURVEYOR REPORT (Senate Concurrence)
HJR0046 · 2026-05-31
LITTLE PALESTINE WAY (Senate Motion To Adopt)
SB3465 · 2026-05-31
CONSTRUCTION-SANITARY REQS (Senate Concurrence)
SB3208 · 2026-05-31
VEH CD-HUSBANDRY IMPLEMENT DEF (Senate State Government Committee)
SB3208 · 2026-05-31
VEH CD-HUSBANDRY IMPLEMENT DEF (Senate Concurrence)
SB3321 · 2026-05-31
LOC GOV-CREDIT CARD AGREEMENTS (Senate Concurrence)
SB3019 · 2026-05-31
FINANCE-AGRICULTURAL BORROWER (Senate Concurrence)
SB3049 · 2026-05-31
NEWBORN METABOLIC SCREENING (Senate Concurrence)
HB4327 · 2026-05-31
AUDITOR GENERAL-340B AUDIT (Senate Third Reading)
SB3222 · 2026-05-31
VIDEO STREAMING AD VOLUME (Senate Concurrence)
SB3020 · 2026-05-31
DOMESTIC VIOLENCE-HARASSMENT (Senate Concurrence)
HB5090 · 2026-05-31
PROCUREMENT-CONSTRUCTION (Senate Third Reading)
SB3044 · 2026-05-31
DOMESTIC VIOLENCE ORDER-EFFECT (Senate Concurrence)
SB3048 · 2026-05-31
DOMESTIC VIOLENCE-LETHALITY (Senate Concurrence)
SB2951 · 2026-05-31
MORTGAGE FORECLOSURE TIME (Senate Concurrence)
HB4496 · 2026-05-31
PROCUREMENT-STATE LABS (Senate Third Reading)
HB4379 · 2026-05-31
ADULT CHANGING STATIONS (Senate Third Reading)
SB3113 · 2026-05-31
CREDIT UNIONS-VARIOUS (Senate Concurrence)
SB3086 · 2026-05-31
STATE PERMITTED INVESTMENTS (Senate Concurrence)
HB2949 · 2026-05-31
FY27 BUDGET IMPLEMENTATION (Senate Third Reading)
HB2783 · 2026-05-31
CMS-MENSTRUAL PRODUCTS (Senate Third Reading)
SB2762 · 2026-05-31
INS-SEIZURE DETECTION DEVICE (Senate Concurrence)
HB4911 · 2026-05-31
VETERAN SCRATCH-OFF GAME (Senate Third Reading)
SB3255 · 2026-05-31
DHS-DSP PILOT PROGRAM (Senate Concurrence)
SB3777 · 2026-05-31
HUMAN RIGHTS-DISPARTE IMPACT (Senate Concurrence)
SB3645 · 2026-05-31
REGULATORY SUNSET-RADIATION (Senate Concurrence)
HB0957 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
SB2427 · 2026-05-31
SCH CD-WIRELESS COMM DEVICE (Senate Concurrence)
HB4377 · 2026-05-31
PHA-NO WORK REQUIREMENTS (Senate Third Reading)
SB2771 · 2026-05-31
SUICIDE PREVENTION INFORMATION (Senate Concurrence)
SB3365 · 2026-05-31
MEDICARE/MEDICAID DUAL ELIGIBL (Senate Concurrence)
HB5511 · 2026-05-31
DIGITAL AGE ASSURANCE (Senate Third Reading)
HB0111 · 2026-05-31
$FY 2027 BUDGET (Senate Third Reading)
HB4248 · 2026-05-31
ALGORITHMIC PRICE TRANSPARENCY (Senate Third Reading)
HB3663 · 2026-05-31
COURT OF CLAIMS-AWARDS (Senate Third Reading)
HB0958 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
SB3798 · 2026-05-31
MENTAL HEALTH 9-1-1 CALLS (Senate Concurrence)
SB0807 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Concurrence)
SB3484 · 2026-05-31
VEH CD-PLATES-REGISTRATION (Senate Concurrence)
SB2524 · 2026-05-31
VEH CD-DRIVER'S LICENSE (Senate Concurrence)
HB0862 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
SB2645 · 2026-05-31
FIRE STATION REHABILITATION (Senate Concurrence)
HB0952 · 2026-05-31
STATE GOVERNMENT-TECH (Senate Third Reading)
Complete voting record from LegiScan (showing the 60 most recent of 1354 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 16 is House 31 plus House 32. The percentage is how often each of them ended up on the same side as Willie Preston on bills both voted on (each one’s final Yea or Nay on the bill).
Willie PrestonState Senate 16 · Democratic · this page
Mike CrawfordState House 31 · Democratic
99%
Lisa DavisState House 32 · Democratic
99%
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 Willie Preston
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