Warren Petersen
Arizona State Senator, District 14 since 2016. Did not run for re-election in 2026; leaves office in January 2027. Lost the 2026 race for Arizona Attorney General.
- 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
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
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
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.
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 | — | — |
| 2022 | Arizona State Senate, District 14 | Won | — | — | — |
| 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 | — | — |
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Seats Petersen has held
- Arizona State Senate, District 14 · since 2022
- Arizona State Senate, District 12 · since 2020
- Arizona House of Representatives, District 12 · 2018–2020
- Arizona State Senate, District 12 · since 2016
- Arizona House of Representatives, District 12 · 2012–2016
Source: 99chambers results archive
Who Petersen has run against
- Kris Mayes (D) · 2026 general, lost
- Elizabeth Brown (D) · 2024 election, won
- Lynsey Robinson (D) · 2020 election, won
- Travis Grantham (R) · 2018 election, won
- Eddie Farnsworth (R) · 2014 election, won
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)
In the polls
Included in 15 polls; Petersen’s best result was 47% (Arizona Attorney General).
Petersen’s polls in the database →How we know Petersen
One person, matched across every source we use.
- Open States ocd-person/66e496a4-a407-4af1-add3-ef6899b89807
- Wikidata Q16734452
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 11:01 PM ET