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

Vince Leach

Arizona State Senator, District 17 since 2018. Did not run for re-election in 2026; leaves office in January 2027.

Arizona State Senator, District 17

In office
7 yrs
Since 2018
Bills became law
3
17 sponsored, 2025–2026 session
Votes missed
1.6%
Chamber median 3.3%
With party
97%
On votes splitting the parties
Last margin
+2.0
Won 2024

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

Committees

As of 2026-10.

  • Finance · vice chair
  • Appropriations, Transportation and Technology
  • Regulatory Affairs and Government Efficiency

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

Legislation

2025–2026 session · 17 sponsored · 3 became law
BillIntroCmteSenateHouseLaw
SB 1215 litigation; financing; consumer protection; enforcement
Became law Jun 2025
SB 1551 workers' compensation; disability; definitions
Became law Apr 2025
SB 1549 conservation easements; valuation
Became law Mar 2025
SB 1050 GPLET; notice; abatement period
Vetoed Apr 2025
SB 1601 appropriation; Arizona America250 commission
Failed in the House Mar 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Leach sits in the Arizona State Senate

Leach is closer to the center than 76% of the chamber's Republicans.

Dem. medianRep. medianLeachMore liberalMore conservative

Closest: Shawnna Bolick, John Kavanagh, Tim Dunn

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:45 PM ET

With Leach’s party

  • Votes with the chamber's Republicans97%
  • Cosponsorships of the other party's bills28%

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

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

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

DateBillLeachRep. majorityDem. majorityResult
Jun 12, 2026HB 2800: ignition interlock devices; violation; classificationYesNoYesPassed 17–12
Jun 12, 2026HB 2305: private towing carriers; regulation; ratesYesYesNoFailed 13–14
Jun 9, 2026HB 2611: group homes; safety; training; rightsYesYesNoPassed 17–12
Mar 9, 2026HB 2993: DPS; legal representation; appropriationYesYesNoPassed 16–13
Mar 4, 2026SB 1627: schools; prohibition; unmanned aircraftYesYesNoPassed 16–13

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

Career

Offices held, and every time Leach 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
2024Arizona State Senate, District 17WonR+2.0
2020Arizona State Senate, District 11WonR+8.8
2018Arizona State Senate, District 11WonR+10.2
2016Arizona House of Representatives, District 11WonD+2.3
2014Arizona House of Representatives, District 11WonD+2.5

Source: 99chambers results archive

Seats Leach has held

Source: 99chambers results archive

Who Leach has run against

  • John McLean (I) · 2024 general, won
  • Joanna Mendoza (D) · 2020 general, won
  • Ralph Atchue (D) · 2018 general, won
  • Mark Finchem (R) · 2016 general, won
  • Mark Finchem (R) · 2014 general, won

Source: 99chambers results archive

How we know Leach

One person, matched across every source we use.

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