RepublicanIn office since Nov 2022

Lee Deming

Montana State Representative, District 54 since 2022. Re-elected in 2026. Next on the ballot in 2028.

Montana State Representative, District 54

Official website Wikipedia

In office: 3 yrs; Since 2022
Bills became law: 1; 11 sponsored, 2025–2026 session
Votes missed: 0.0%; Chamber median 0.2%
With party: 91%; On votes splitting the parties
Last margin: +37.2; Won 2026
Next election: 2028; Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET

Committees

As of 2026-10.

Judiciary · vice chair
Education
Education Interim
Fish, Wildlife and Parks
Legislative Administration
School Funding Interim Commission

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

Legislation

2025–2026 session · 11 sponsored · 1 became law

BillIntroCmteHouseSenateLaw

HB 723 Establish annual reporting requirements of infants born alive
Abortion · Became law May 2025

HB 316 Constitutional amendment to define person
Abortion · Failed in committee May 2025

HB 30 Requiring the Supreme Court to apply a burden of proof for challenge to constitutionality of legislative act
Courts · Failed in committee May 2025

HB 948 Generally revise insurance laws to provide that the Commissioner of Insurance's office is not a criminal…
Appropriations · Failed in committee May 2025

HB 52 Generally revising administrative procedure laws relating to agency deference
Administrative Rules · Failed in committee May 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Deming sits in the Montana House of Representatives

Deming is closer to the center than 34% of the chamber's Republicans.

Closest: Zack Wirth, Steve Kelly, Morgan Thiel

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:55 PM ET

With Deming’s party

Votes with the chamber's Republicans91%

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

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

Date	Bill	Deming	Rep. majority	Dem. majority	Result
Apr 28, 2025	SB 118: Generally revise student data laws to enhance privacy	Yes	Yes	No	Failed 33–67
Apr 25, 2025	SB 151: Direct the director of the public defender's office to create units for family defense and…	Yes	No	Yes	Failed 49–50
Apr 25, 2025	SB 321: Provide tax credits for children and child care	No	No	Yes	Failed 46–53
Apr 24, 2025	SB 322: Increase business equipment tax exemption	Yes	Yes	No	Failed 48–52

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

Career

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

2022202320242025202620272028Montana House of Representatives, District 55 Montana House of Representatives, District 54

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	Montana House District 54	Won	R+37.2	R+43.1	−5.9
2024	Montana House of Representatives, District 54	Won	—	—	—
2022	Montana House of Representatives, District 55	Won	—	—	—