Mike Henderson
Missouri State Senator, District 3 since 2024. Next on the ballot in 2028.
- In office
- 1 yr
- Since 2024
- Bills became law
- 4
- 65 sponsored, 2025–2026 session
- Last margin
- +51.7
- 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.
- Commerce, Consumer Protection, Energy and the Environment · vice chair
- Local Government, Elections and Pensions · chair
- Appropriations
- Budget Conference
- Education
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Administrative Law · Became law Jul 2026
Children and Minors · Became law Jul 2026
Boards, Commissions, Committees, and Councils · Became law Jul 2026
Crimes and Punishment · Became law Jul 2026
Economic Development · Vetoed May 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Career
Offices held, and every time Henderson 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 | Missouri State Senate, District 3 | Won | R+51.7 |
| 2022 | Missouri House of Representatives, District 117 | Won | — |
| 2020 | Missouri House of Representatives, District 117 | Won | R+46.6 |
| 2018 | Missouri House of Representatives, District 117 | Won | R+44.1 |
| 2016 | Missouri House of Representatives, District 117 | Won | R+13.5 |
Source: 99chambers results archive
Seats Henderson has held
- Missouri State Senate, District 3 · since 2024
- Missouri House of Representatives, District 117 · 2016–2024
Source: 99chambers results archive
Who Henderson has run against
- Doug Halbert (D) · 2024 general, won
- Tony Dorsett (D) · 2020 general, won
- Kayla Chick (D) · 2018 general, won
- Travis Barnes (D) · 2016 general, won
Source: 99chambers results archive
How we know Henderson
One person, matched across every source we use.
- Open States ocd-person/bfad4ef7-fad2-46e6-8f12-f8ea9feaa0cb
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET