William (Bill) Irwin
Missouri State Representative, District 55 since 2024. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 1 yr
- Since 2024
- Bills became law
- 0
- 14 sponsored, 2025–2026 session
- Last margin
- +23.3
- Won 2026
- 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.
- Crime and Public Safety
- Government Accountability
- Government Efficiency
- Veterans and Armed Forces
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
CHILDREN AND MINORS · Failed in the Senate Apr 2026
GENERAL ASSEMBLY · Failed in the House Apr 2026
Failed in the House Apr 2026
CRIMES AND PUNISHMENT · Failed in the House Apr 2026
Failed in the House Feb 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Career
Offices held, and every time Irwin 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 | Missouri House District 55 | Won | R+23.3 | R+39.1 | −15.8 |
| 2024 | Missouri House of Representatives, District 55 | Won | — | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Seats Irwin has held
- Missouri House of Representatives, District 55 · since 2024
Source: 99chambers results archive
Who Irwin has run against
- Jon Pennell (D) · 2026 general, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Irwin
One person, matched across every source we use.
- Open States ocd-person/21a85544-7b2f-4d34-9654-a1ebfaa34881
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET