Dave Syverson
Illinois State Senator, District 35 since 1992. Ran for re-election in 2026; the count goes on.
Illinois State Senator, District 35Born 1957
- In office
- 34 yrs
- Since 1992
- Bills became law
- 2
- 27 sponsored, 2025–2026 session
- Votes missed
- 6.2%
- Chamber median 2.8%
- With party
- 95%
- On votes splitting the parties
- Last margin
- +5.1
- Won 2010
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET
Committees
As of 2026-10.
- Appropriations-Health and Human Services · republican spokesperson
- Health and Human Services · republican spokesperson
- Insurance · republican spokesperson
- Human Rights
- Licensed Activities
- Public Health
- Tourism Special
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 Syverson sits in the Illinois State Senate
Syverson is closer to the center than 42% of the chamber's Republicans.
Closest: Jil Tracy, Craig Wilcox, Sally Turner
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:50 PM ET
With Syverson’s party
- Votes with the chamber's Republicans95%
- Cosponsorships of the other party's bills31%
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: Syverson’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Syverson | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| May 31, 2026 | HB 5090: PROCUREMENT-CONSTRUCTION | Yes | 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 Syverson 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 | Seat | +/− |
|---|---|---|---|---|---|
| 2026 | Illinois Legislative District 35 | Counting | R+1.7 | R+9.8 | −8.1 |
| 2022 | Illinois State Senate, District 35 | Won | — | — | — |
| 2018 | Illinois State Senate, District 35 | Won | — | — | — |
| 2016 | Illinois State Senate, District 35 | Won | — | — | — |
| 2012 | Illinois State Senate, District 35 | Won | — | — | — |
| 2010 | Illinois State Senate, District 34 | Won | R+5.1 | — | — |
| 2006 | Illinois State Senate, District 34 | Won | R+11.2 | — | — |
| 2002 | Illinois State Senate, District 34 | Won | — | — | — |
| 1998 | Illinois State Senate, District 34 | Won | — | — | — |
| 1996 | Illinois State Senate, District 34 | Won | R+24.2 | — | — |
| 1992 | Illinois State Senate, District 34 | Won | R+7.1 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $554.5K
- Spent
- $321.2K
- Cash
- $262.9K
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.
| Dave Syverson Campaign Committee State | Active |
Source: Illinois State Board of Elections filings through Sep 30, 2026Updated Nov 1, 2026, 9:15 AM ET
Seats Syverson has held
- Illinois State Senate, District 35 · since 2012
- Illinois State Senate, District 34 · since 1992
Source: 99chambers results archive
Who Syverson has run against
- Democratic (D) · 2026 general
- Marla Wilson (D) · 2010 election, won
- Daniel A. Lewandowski (D) · 2006 election, won
- Carol Jamborsmith (D) · 1996 election, won
- Joyce Holmberg (D) · 1992 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Syverson
One person, matched across every source we use.
- Open States ocd-person/d02beb7e-1f30-48f2-8418-4c9287452562
- Wikidata Q5229960
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET