Bryan Posthumus
Michigan State Representative, District 90 since 2020. Did not run for re-election in 2026; leaves office in January 2027.
- In office
- 6 yrs
- Since 2020
- Bills became law
- 3
- 31 sponsored, 2025–2026 session
- Votes missed
- 0.0%
- Chamber median 0.0%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +27.0
- Won 2024
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET
Committees
As of 2026-10.
- Oversight · alternate
- Rules and Procedures of the State Board of Canvassers and the Bureau of Elections Select · republican vice chair
- Finance
- Fiscal Agency Governing
- Insurance
- Rules
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Children: child abuse or child neglect · Became law Jul 2026
Children: other · Became law Jul 2026
Property: conveyance of state property · Became law Jul 2026
Housing: residential · Passed House Oct 2026
Economic development: Michigan strategic fund · Passed House Feb 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Posthumus sits in the Michigan House of Representatives
Posthumus is closer to the center than 33% of the chamber's Republicans.
Closest: Mike Harris, Ann Bollin, Parker Fairbairn
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:53 PM ET
With Posthumus’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills19%
Black tick: the average of Republicans in the Michigan House of Representatives.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Posthumus’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Posthumus | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Aug 25, 2026 | SB 1013: Insurance: no-fault; price optimization use in determining insurance rates; prohibit.… | Yes | Yes | Yes | Passed 97–7 |
| Aug 25, 2026 | SB 569: Health: funding; various fees under the public health code; transfer and deposit into the… | Yes | Yes | Yes | Passed 98–6 |
| Jul 3, 2026 | SB 616: Civil procedure: civil actions; civil actions against certain opioid litigation settlement… | Yes | Yes | Yes | Passed 102–6 |
| Jul 3, 2026 | HB 4063: Public employees and officers: ethics; certain former officers of the executive branch of… | Yes | Yes | Yes | Passed 92–15 |
| Jul 3, 2026 | HB 4350: Natural resources: other; wildlife feeding; allow under certain conditions. Amends sec.… | Yes | Yes | No | Passed 76–32 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Posthumus 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 | Michigan House of Representatives, District 90 | Won | R+27.0 |
| 2022 | Michigan House of Representatives, District 90 | Won | R+24.1 |
| 2020 | Michigan House of Representatives, District 73 | Won | R+15.3 |
Source: 99chambers results archive
Seats Posthumus has held
- Michigan House of Representatives, District 90 · since 2022
- Michigan House of Representatives, District 73 · since 2020
Source: 99chambers results archive
Who Posthumus has run against
- William J. Higgins (D) · 2024 general, won
- Meagan Hintz (D) · 2022 general, won
- Bill Saxton (D) · 2020 general, won
Source: 99chambers results archive
How we know Posthumus
One person, matched across every source we use.
- Open States ocd-person/c925c469-552f-448d-a89f-ef456e15da21
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET