Dave Koehler
Illinois State Senator, District 46 since 2006. Next on the ballot in 2028.
- In office
- 20 yrs
- Since 2006
- Bills became law
- 29
- 139 sponsored, 2025–2026 session
- Votes missed
- 0.1%
- Chamber median 2.8%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +15.2
- Won 2024
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET
Committees
As of 2026-10.
- Appropriations-Health and Human Services · vice chair
- Agriculture
- Energy and Public Utilities
- Health and Human Services
- Higher Education
- Public Health
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Koehler sits in the Illinois State Senate
Koehler is closer to the center than 38% of the chamber's Democrats.
Closest: Mary Edly-Allen, Steve Stadelman, Napoleon Harris
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:50 PM ET
With Koehler’s party
- Votes with the chamber's Democrats100%
- Cosponsorships of the other party's bills7%
Black tick: the average of Democrats in the Illinois State Senate.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Koehler’s vote, each party’s majority, and the result. An orange vote differs from most Democrats.
| Date | Bill | Koehler | Dem. majority | Rep. majority | Result |
|---|---|---|---|---|---|
| May 31, 2026 | HB 5090: PROCUREMENT-CONSTRUCTION | Yes | Yes | No | Passed 42–12 |
| May 31, 2026 | HB 4379: ADULT CHANGING STATIONS | Yes | Yes | No | Passed 46–12 |
| May 31, 2026 | HB 4571: COUNTIES CD-AFFORDABLE HOUSING | Yes | Yes | No | Passed 44–14 |
| May 29, 2026 | HB 4758: JOB APPLICATION-DRIVER LICENSE | Yes | Yes | No | Passed 41–15 |
| May 29, 2026 | HB 4339: SCH CD-HIGH SCH-REGISTER VOTER | Yes | Yes | No | Passed 41–12 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Koehler 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.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2024 | Illinois State Senate, District 46 | Won | D+15.2 |
| 2022 | Illinois State Senate, District 46 | Won | D+16.1 |
| 2020 | Illinois State Senate, District 46 | Won | D+7.8 |
| 2016 | Illinois State Senate, District 46 | Won | — |
| 2012 | Illinois State Senate, District 46 | Won | D+8.4 |
| 2010 | Illinois State Senate, District 46 | Won | — |
| 2006 | Illinois State Senate, District 46 | Won | D+15.2 |
Source: 99chambers results archive
Seats Koehler has held
- Illinois State Senate, District 46 · since 2006
Source: 99chambers results archive
Who Koehler has run against
- Sally Owens (R) · 2024 general, won
- Desi Anderson (R) · 2022 general, won
- Mary Burress (R) · 2020 general, won
- Pat Sullivan (R) · 2012 general, won
- Ernest E. Russell (R) · 2006 general, won
Source: 99chambers results archive
How we know Koehler
One person, matched across every source we use.
- Open States ocd-person/997e8947-dadd-4c8d-9538-0b58c077a812
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET