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

Warren Petersen

Arizona State Senator, District 14 since 2016. Did not run for re-election in 2026; leaves office in January 2027. Ran in 8 elections between 2012 and 2024, winning 8. Lost the 2026 race for Arizona Attorney General.

Arizona State Senator, District 14

Official website Wikipedia

In office: 9 yrs; Since 2016
Bills became law: 5; 23 sponsored, 2025–2026 session
Votes missed: 2.1%; Chamber median 3.3%
With party: 99%; On votes splitting the parties
Last margin: −11.0; Lost 2026
Elections: 9; 2012–2026

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 11:01 PM ET

Committees

As of 2026-10.

Legislative Audit · ex officio
Legislative Council · chair
Legislative Water
Rules

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

Legislation

2025–2026 session · 23 sponsored · 5 became law

BillIntroCmteSenateHouseLaw

SB 1232 military compatibility permit zoning
Became law May 2026

SB 1566 malicious delay; enforcement; penalty
Became law May 2026

SB 1107 peace officer certification; alternative pathway
Became law Apr 2026

SB 1247 assisted living centers; occupants
Became law Apr 2026

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

Voting record

2025–2026 session · placement by roll-call votes

Where Petersen sits in the Arizona State Senate

Petersen is closer to the center than 0% of the chamber's Republicans.

Closest: Dave Farnsworth, Janae Shamp, J.D. Mesnard

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

With Petersen’s party

Votes with the chamber's Republicans99%
Cosponsorships of the other party's bills0%

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

Date	Bill	Petersen	Rep. majority	Dem. majority	Result
Jun 12, 2026	HB 2800: ignition interlock devices; violation; classification	No	No	Yes	Passed 17–12
Jun 12, 2026	HB 2305: private towing carriers; regulation; rates	Yes	Yes	No	Failed 13–14
Jun 9, 2026	HB 2611: group homes; safety; training; rights	Yes	Yes	No	Passed 17–12
Mar 9, 2026	HB 2993: DPS; legal representation; appropriation	Yes	Yes	No	Passed 16–13
Mar 4, 2026	SB 1627: schools; prohibition; unmanned aircraft	Yes	Yes	No	Passed 16–13

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

Career

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

201220142016201820202022202420262028Arizona House of Representatives, District 12 Arizona State Senate, District 12 Arizona House of Representatives, District 12 Arizona State Senate, District 12 Arizona State Senate, District 14

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	Arizona Attorney General	Lost	D+11.0	R+5.6	−16.6
2024	Arizona State Senate, District 14	Won	R+20.2	R+18.5	+1.7
2022	Arizona State Senate, District 14	Won	—	R+15.3	—
2020	Arizona State Senate, District 12	Won	R+23.3	—	—
2018	Arizona House of Representatives, District 12	Won	R+0.1	—	—
2016	Arizona State Senate, District 12	Won	R+30.2	—	—
2014	Arizona House of Representatives, District 12	Won	R+2.3	—	—
2014	Arizona House of Representatives, District 12 (primary)	Won	+3.4	—	—
2012	Arizona House of Representatives, District 12	Won	D+1.3	—	—