RepublicanIn office since Nov 2022

Andrew Chesney

Illinois State Senator, District 45 since 2022. Ran in 3 elections between 2018 and 2022, winning 3. Re-elected in 2026. Next on the ballot in 2030.

Illinois State Senator, District 45Born 1982

Official website Wikipedia

In office: 3 yrs; Since 2022
Bills became law: 2; 51 sponsored, 2025–2026 session
Votes missed: 6.1%; Chamber median 2.8%
With party: 99%; On votes splitting the parties
Last margin: +20.0; Won 2026
Next election: 2030; Nov 5, 2030

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET

Committees

As of 2026-10.

Agriculture · republican spokesperson
Appropriations-Health and Human Services
Appropriations-Public Safety and Infrastructure
Behavioral and Mental Health
Environment and Conservation
Labor
Public Health

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 51 sponsored · 2 became law

BillIntroCmteSenateHouseLaw

HB 3393 CRIM PRO--SPEEDY TRIAL TOLL
Became law Aug 2026

SB 3116 BEES/APIARIES-CONSENT
Became law Jul 2026

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where Chesney sits in the Illinois State Senate

Chesney is closer to the center than 0% of the chamber's Republicans.

Closest: Neil Anderson, Jason Plummer, Chapin Rose

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:50 PM ET

With Chesney’s party

Votes with the chamber's Republicans99%
Cosponsorships of the other party's bills40%

Black tick: the average of Republicans in the Illinois State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Chesney’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

Date	Bill	Chesney	Rep. majority	Dem. majority	Result
May 31, 2026	HB 5090: PROCUREMENT-CONSTRUCTION	No	No	Yes	Passed 42–12
May 31, 2026	HB 4379: ADULT CHANGING STATIONS	No	No	Yes	Passed 46–12
May 31, 2026	HB 4571: COUNTIES CD-AFFORDABLE HOUSING	No	No	Yes	Passed 44–14
May 29, 2026	HB 4758: JOB APPLICATION-DRIVER LICENSE	No	No	Yes	Passed 41–15
May 29, 2026	HB 4339: SCH CD-HIGH SCH-REGISTER VOTER	No	No	Yes	Passed 41–12

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time Chesney was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

20182019202020212022202320242025202620272028Illinois House of Representatives, District 89 Illinois State Senate, District 45

Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Elections

Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.

Year	Race	Result	Margin	Seat	+/−
2026	Illinois State Senate, District 45	Won	R+20.0	R+22.2	−2.2
2022	Illinois State Senate, District 45	Won	R+32.9	R+19.4	+13.5
2020	Illinois House of Representatives, District 89	Won	R+46.9	—	—
2018	Illinois House of Representatives, District 89	Won	R+23.7	—	—