Leaving office January 1, 2027.Lost re-election in 2026. This page switches to the former-officeholder layout when the term ends.
RepublicanIn office until January 1, 2027

Mark Tisdel

Michigan State Representative, District 55 since 2020. Lost re-election in 2026; leaves office in January 2027.

Michigan State Representative, District 55

In office
6 yrs
Since 2020
Bills became law
2
43 sponsored, 2025–2026 session
Votes missed
0.0%
Chamber median 0.0%
With party
100%
On votes splitting the parties
Last margin
+7.5
Won 2024

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

Committees

As of 2026-10.

  • Finance · chair
  • Insurance · republican vice chair
  • Health Policy
  • Regulatory Reform

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

Legislation

2025–2026 session · 43 sponsored · 2 became law
BillIntroCmteHouseSenateLaw
HB 4062 Public employees and officers: ethics; former members of the legislature; prohibit from engaging in certain…
Legislature: legislators · Became law Jul 2026
HB 4141 Education: students; a wireless communications device policy: require the board of a school district or…
Communications: technology · Became law Feb 2026
HB 6261 Crimes: criminal sexual conduct; penalties for criminal sexual conduct in the second degree; modify. Amends…
Crimes: criminal sexual conduct · Passed House Oct 2026
HB 5549 Financial institutions: other; consumer financial services act; revise internal references related to money…
Financial institutions: money transmitters · Passed House Jul 2026
HB 5551 Occupations: plumbers; requirements for backflow prevention testing; modify. Amends sec. 1107 of 2016 PA 407…
Occupations: plumbers · Passed House Jun 2026

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

Voting record

2025–2026 session · placement by roll-call votes

Where Tisdel sits in the Michigan House of Representatives

Tisdel is closer to the center than 83% of the chamber's Republicans.

Dem. medianRep. medianTisdelMore liberalMore conservative

Closest: Nancy DeBoer, Rylee Linting, Karen Whitsett

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:53 PM ET

With Tisdel’s party

  • Votes with the chamber's Republicans100%
  • Cosponsorships of the other party's bills14%

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: Tisdel’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

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

Career

Offices held, and every time Tisdel 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.

Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET

Campaign money, 2025–26

Raised
$453K
Spent
$173.5K
Cash
$5.1K

Source: Michigan Bureau of Elections filings through Oct 18, 2026Updated Oct 31, 2026, 3:38 PM ET

Campaign committees

Open committees can still raise and spend money.

COMMITTEE TO ELECT MARK TISDEL
State
Active

Source: Michigan Bureau of Elections filings through Oct 18, 2026Updated Oct 31, 2026, 3:38 PM ET

Seats Tisdel has held

Source: 99chambers results archive

Who Tisdel has run against

Source: 99chambers results archive; 2026: civicAPI (unofficial)

How we know Tisdel

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET