Leaving office January 1, 2027.Did not run for re-election in 2026. This page switches to the former-officeholder layout when the term ends.
RepublicanIn office until January 1, 2027

John Esp

Montana State Senator, District 29 since 2002. Did not run for re-election in 2026; leaves office in January 2027.

Montana State Senator, District 29

In office
24 yrs
Since 2002
Bills became law
7
7 sponsored, 2025–2026 session
Votes missed
1.1%
Chamber median 0.5%
With party
88%
On votes splitting the parties
Last margin
+10.6
Won 2022

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET

Committees

As of 2026-10.

  • Finance and Claims · vice chair
  • Long Range Planning Interim Budget Committee · vice chair
  • Children, Families, Health and Human Services Interim
  • Education and Cultural Resources
  • Environmental Quality Council
  • Highways and Transportation
  • Rules
  • Rules

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

Legislation

2025–2026 session · 7 sponsored · 7 became law
BillIntroCmteSenateHouseLaw
SB 430 Generally revise laws related to civil commitment and emergency detention of mentally ill persons
Civil Procedure · Became law May 2025
SB 429 Generally revise laws related to determination and restoration of fitness in criminal proceedings
Criminal Procedure · Became law May 2025
SB 435 Generally revise laws related to mentally ill individuals
Civil Procedure · Became law May 2025
SB 46 Increase registration fee for underground petroleum tanks
Environmental Protection · Became law May 2025
SB 223 Allow interest earned on workforce housing appropriations to be retained
Housing · Became law May 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Esp sits in the Montana State Senate

Esp is closer to the center than 38% of the chamber's Republicans.

Dem. medianRep. medianEspMore liberalMore conservative

Closest: Forrest Mandeville, Tom McGillvray, Ken Bogner

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

With Esp’s party

  • Votes with the chamber's Republicans88%

Black tick: the average of Republicans in the Montana State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

DateBillEspRep. majorityDem. majorityResult
Apr 23, 2025HB 860: Provide for veterinary training loan programYesYesYesPassed 41–9
Apr 23, 2025HB 129: Provide income tax benefit to support emergency response volunteersNoNoYesPassed 28–22
Apr 23, 2025HB 853: Revise fees for licensed establishmentsNoNoYesPassed 29–21

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

Career

Offices held, and every time Esp 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.

YearRaceResultMargin
2022Montana State Senate, District 30WonR+10.6
2018Montana State Senate, District 30WonR+8.8
2010Montana House of Representatives, District 61Won—
2006Montana State Senate, District 31WonR+17.5
2002Montana State Senate, District 13WonR+13.4
2000Montana House of Representatives, District 25WonR+36.1

Source: 99chambers results archive

Seats Esp has held

Source: 99chambers results archive

Who Esp has run against

  • Jamie L. Isaly (D) · 2022 general, won
  • Dan Vermillion (D) · 2018 general, won
  • Clay Scott McDonald (D) · 2006 general, won
  • Paul A. Grigsby (D) · 2002 general, won
  • Bruce R. Carroll (D) · 2000 general, won

Source: 99chambers results archive

How we know Esp

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET