RepublicanIn office since Nov 2024

Ant Thornton

New Mexico State Senator, District 19 since 2024. Next on the ballot in 2028.

New Mexico State Senator, District 19

In office
1 yr
Since 2024
Votes missed
5.5%
Chamber median 7.9%
With party
93%
On votes splitting the parties
Last margin
+14.0
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.

  • Investments and Pensions Oversight · advisory
  • Legislative Education Study · advisory
  • Radioactive and Hazardous Materials · advisory
  • Conservation
  • Education
  • Land Grant
  • Science, Technology and Telecommunications
  • Water and Natural Resources

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

Voting record

2025–2026 session · placement by roll-call votes

Where Thornton sits in the New Mexico State Senate

Thornton is closer to the center than 41% of the chamber's Republicans.

Dem. medianRep. medianThorntonMore liberalMore conservative

Closest: , Rex Wilson, Jay Block

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:57 PM ET

With Thornton’s party

  • Votes with the chamber's Republicans93%

Black tick: the average of Republicans in the New Mexico State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

DateBillThorntonRep. majorityDem. majorityResult
Feb 19, 2026HB 200: NEW HOMES FOR NEW MEXICO PROGRAMNoNoYesPassed 22–13
Feb 18, 2026HB 165: PAYMENT OF CERTAIN IRB SPECIAL ASSESSMENTSNoNoYesPassed 30–10
Feb 18, 2026HB 184: INVESTMENT OF CONSERVATION & LEGACY FUNDSYesNoYesPassed 25–11
Feb 18, 2026HB 7: APPRENTICESHIP ASSISTANCE ACT TRANSFERSYesNoYesPassed 29–8
Feb 17, 2026HJR 5: LEGISLATIVE COMPENSATION, CANoNoYesPassed 23–19

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

Career

Offices held, and every time Thornton 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
2024New Mexico State Senate, District 19WonR+14.0

Source: 99chambers results archive

Seats Thornton has held

Source: 99chambers results archive

Who Thornton has run against

  • William Burton Scott (D) · 2024 general, won

Source: 99chambers results archive

How we know Thornton

One person, matched across every source we use.

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