RepublicanIn office since Nov 2022

Mark I. Thompson

Iowa State Representative, District 56 since 2022. Re-elected in 2026. Next on the ballot in 2028.

Iowa State Representative, District 56Born 1955

Official website Wikipedia

In office: 3 yrs; Since 2022
Bills became law: 0; 42 sponsored, 2025–2026 session
Votes missed: 0.4%; Chamber median 3.8%
With party: 97%; On votes splitting the parties
Last margin: +39.4; Won 2026
Next election: 2028; Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET

Committees

As of 2026-10.

International Relations
Judiciary
Local Government
Veterans Affairs

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 42 sponsored · 0 became law

BillIntroCmteHouseSenateLaw

HF 458 A bill for an act establishing a grant program for a nonprofit organization providing sexual assault…
grants · Failed in the House May 2026

HF 601 A bill for an act relating to fees for wire transmissions, and related income tax credits.
financial institutions · Failed in the House Apr 2026

HF 2209 A bill for an act providing for the admission of students to the Iowa state university of science and…
college of veterinary medicine · Failed in the House Apr 2026

HF 2145 A bill for an act relating to the regulation of places and practices of worship by the governor.
emergency management · Failed in the House Mar 2026

HF 2144 A bill for an act relating to the expungement of certain criminal history records of victims of human…
criminal history · Failed in the House Mar 2026

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where Thompson sits in the Iowa House of Representatives

Thompson is closer to the center than 50% of the chamber's Republicans.

Closest: Chad Behn, Blaine Watkins, Ryan Weldon

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:49 PM ET

With Thompson’s party

Votes with the chamber's Republicans97%

Black tick: the average of Republicans in the Iowa House of Representatives.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Thompson’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

Date	Bill	Thompson	Rep. majority	Dem. majority	Result
May 2, 2026	HF 2542: A bill for an act relating to habitual offenders, and providing penalties.	Yes	Yes	No	Passed 66–20
May 2, 2026	SF 2490: A bill for an act relating to oil and gas production, including filing requirements, the…	Yes	Yes	No	Passed 65–21
May 2, 2026	HF 2771: A bill for an act relating to and making appropriations involving state government…	Yes	Yes	No	Passed 66–18
May 2, 2026	SF 2472: A bill for an act relating to state and local government taxes, fees, financial…	Yes	Yes	No	Passed 62–22
Apr 29, 2026	SF 2218: A bill for an act relating to state regulatory compliance and eligibility requirements,…	Yes	Yes	No	Passed 71–20

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time Thompson was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

2022202320242025202620272028Iowa House of Representatives, District 56

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	Iowa House District 56	Won	R+39.4	R+45.1	−5.7
2024	Iowa House of Representatives, District 56	Won	R+48.4	—	—
2022	Iowa House of Representatives, District 56	Won	R+64.7	—	—