Illinois Senate · District 16

Willie Preston

Democratic

Where they sit

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

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

Willie Preston'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

Illinois Senate56thpercentile
More conservative than 56% of the Illinois Senate.
Most liberalMost conservative
26th most conservative of 58
Votes with the Senate President
99%
Democrats Republicans 0%100%

Each tick is a current senator, by party; the dot is Willie Preston.

On 233 contested votes where both voted99% on all 1,155 votes where both voted
Votes with own party
99%
Democrats Republicans 45%100%

Each tick is a current senator, by party; the dot is Willie Preston.

On 200 party-line votesPartisan rank: 25 of 58 in the Senate (tied with 12 others)24 senators vote with their party more often

Bills

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

How these numbers work →
Bills: Willie Preston
Bills
Sponsored68
Passed both chambers3
Became law3
Vetoed by the Governor0

Rank by bills passed: Rank 35 of 59 in the Senate (tied with 9 others) · 33 of 40 Democrats (tied with 5 others)

A bill's sponsor is its chief sponsor in the chamber where it was filed; co-sponsors aren't counted. Resolutions aren't counted.

Bills that passed both chambers

Bills that passed both chambers: Willie Preston
BillResultFinal action
SB 3070
EDUC-FOREIGN LANG ALTERNATIVE
Became law May 31, 2026
SB 2918
PARENT-TEACHER ADVISORY COMM
Became law May 22, 2026
SB 2899
INS CD-STUTTERING COVERAGE
Became law May 21, 2026

Budget projects

Illinois's budget acts don't name the legislator who asked for an item, so there's no budget figure for Illinois legislators.

Contested votes where they split

3 against the Senate President; 3 against most of their party.

Contested votes where they split: Willie Preston
DateBill and motion Their voteSenate PresidentMost of their party
May 21, 2026 SB 3391: SCH CD-CHARTER SCHOOL-CLOSURE
Third Reading
Nay Yea (split) Yea (split)
Oct. 30, 2025 SB 1950: SANITARY FOOD PREPARATION
Concurrence
Nay Yea (split) Yea (split)
Oct. 30, 2025 SB 25: SWIMMING FACILITY COLD SPA
Concurrence
Nay Yea (split) Yea (split)

Every roll call

How Willie Preston voted on each of the 1,233 floor roll calls while in office, newest first.

Every roll call: Willie Preston
DateVoteTheir vote Most of their partySenate PresidentYeas–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
www.ilga.gov
Capitol office
Room 537, Capitol Building, Springfield, IL 62706
217-782-1607
District office
8500 S. Pulaski Road, Chicago, IL 60652
773-912-6255

Committees

  • Consumer Protection Chair
  • State Government Vice chair
  • Appropriations-Public Safety and Infrastructure
  • Commerce
  • Education
  • Financial Institutions
  • Insurance

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

Source: the Illinois General Assembly's roll-call records, Jan. 8, 2025 to May 31, 2026. How these numbers work · Corrections