Brian H. Seitz
Missouri State Representative, District 156 since 2020. Ran in 3 elections between 2020 and 2024, winning 3. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 6 yrs
- Since 2020
- Bills became law
- 0
- 51 sponsored, 2025–2026 session
- Last margin
- +46.5
- Won 2026
- Next election
- 2028
- Nov 7, 2028
- Elections
- 4
- 2020–2026
- Won
- 4
- generals, primaries and specials
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET
Committees
As of 2026-10.
- Tourism Special · chair
- Commerce
- Crime and Public Safety
- Veterans and Armed Forces
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
No bills in this list for the 2025–2026 session.
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Career
Offices held, and every time Seitz 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 of Representatives, District 156 | Won | R+46.5 | R+57.9 | −11.4 |
| 2024 | Missouri House of Representatives, District 156 | Won | R+57.8 | R+57.9 | −0.1 |
| 2022 | Missouri House of Representatives, District 156 | Won | R+55.8 | R+56.1 | −0.3 |
| 2020 | Missouri House of Representatives, District 156 | Won | R+55.0 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Seats Seitz has held
- Missouri House of Representatives, District 156 · since 2020
Source: 99chambers results archive
Who Seitz has run against
- Trent Davis (D) · 2026 election, won
- Janis Beacham (D) · 2024 election, won
- Ginger Kissee Witty (D) · 2022 election, won
- Dale Speelman (D) · 2020 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Seitz
One person, matched across every source we use.
- Open States ocd-person/83283f83-e8d3-4e03-949c-1bdfae4bfd7f
- Wikidata Q111068954
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET