Chapin Rose
Photo: Photo by Lt. Col. Bradford Leighton, Joint Force Headquarters - Illinois National Guard Public Affairs, Public domain
RepublicanIn office since Nov 2012

Chapin Rose

Illinois State Senator, District 51 since 2012. Ran in 10 elections between 2002 and 2022, winning 10. Re-elected in 2026. Next on the ballot in 2030.

Illinois State Senator, District 51Born 1973

In office
14 yrs
Since 2012
Bills became law
2
110 sponsored, 2025–2026 session
Votes missed
1.5%
Chamber median 2.8%
With party
99%
On votes splitting the parties
Last margin
+65.3
Won 2010
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.

  • Appropriations · republican spokesperson
  • Appropriations-Education
  • Education
  • Financial Institutions
  • Insurance

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

Legislation

2025–2026 session · 110 sponsored · 2 became law
BillIntroCmteSenateHouseLaw
SB 1376 UNIV HISTORICAL COST OF ATTEND
Became law Aug 2025
SB 1160 TRANSPORTATION-TECH
Became law Aug 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Rose sits in the Illinois State Senate

Rose is closer to the center than 16% of the chamber's Republicans.

Dem. medianRep. medianRoseMore liberalMore conservative

Closest: Jason Plummer, Terri Bryant, Li Arellano

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

With Rose’s party

  • Votes with the chamber's Republicans99%
  • Cosponsorships of the other party's bills43%

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: Rose’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

DateBillRoseRep. majorityDem. majorityResult
May 31, 2026HB 5090: PROCUREMENT-CONSTRUCTIONNoNoYesPassed 42–12
May 31, 2026HB 4379: ADULT CHANGING STATIONSNoNoYesPassed 46–12
May 31, 2026HB 4571: COUNTIES CD-AFFORDABLE HOUSINGNoNoYesPassed 44–14
May 29, 2026HB 4758: JOB APPLICATION-DRIVER LICENSENoNoYesPassed 41–15
May 29, 2026HB 4339: SCH CD-HIGH SCH-REGISTER VOTERNoNoYesPassed 41–12

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

Career

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

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.

YearRaceResultMarginSeat+/−
2026Illinois State Senate, District 51Won—R+45.2—
2022Illinois State Senate, District 51Won—R+44.7—
2018Illinois State Senate, District 51Won———
2014Illinois State Senate, District 51Won———
2014Illinois State Senate, District 51 (primary)Won———
2012Illinois State Senate, District 51Won———
2010Illinois House of Representatives, District 110WonR+65.3——
2008Illinois House of Representatives, District 110Won———
2006Illinois House of Representatives, District 110Won———
2004Illinois House of Representatives, District 110Won———
2002Illinois House of Representatives, District 110WonR+33.6——

Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET

Campaign money, 2025–26

Raised
$76.4K
Spent
$80.8K
Cash
$95.6K

Source: Illinois State Board of Elections filings through Sep 30, 2026Updated Nov 1, 2026, 9:15 AM ET

Campaign committees

Open committees can still raise and spend money.

Friends of Chapin Rose
State
Active

Source: Illinois State Board of Elections filings through Sep 30, 2026Updated Nov 1, 2026, 9:15 AM ET

How we know Rose

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET