Dave Farnsworth
Arizona State Senator, District 10 since 2014. Ran in 9 elections between 1994 and 2024, winning 7. Re-elected in 2026. Next on the ballot in 2028.
Arizona State Senator, District 10Born 1951
- In office
- 12 yrs
- Since 2014
- Bills became law
- 13
- 91 sponsored, 2025–2026 session
- Votes missed
- 0.1%
- Chamber median 3.3%
- With party
- 98%
- On votes splitting the parties
- Last margin
- +9.7
- Won 2026
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET
Committees
As of 2026-10.
- Appropriations, Transportation and Technology · chair
- Education · chair
- Rules · chair
- Capital Review
- Ethics
- Government
- Legislative Audit
- Legislative Budget
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 Farnsworth sits in the Arizona State Senate
Farnsworth is closer to the center than 6% of the chamber's Republicans.
Closest: Janae Shamp, J.D. Mesnard, Mark Finchem
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:45 PM ET
With Farnsworth’s party
- Votes with the chamber's Republicans98%
- Cosponsorships of the other party's bills17%
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: Farnsworth’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Farnsworth | 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 | No | Yes | No | Passed 16–13 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Farnsworth 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 State Senate, District 10 | Won | R+9.7 | R+21.1 | −11.4 |
| 2024 | Arizona State Senate, District 10 | Won | R+23.0 | R+21.1 | +1.9 |
| 2022 | Arizona State Senate, District 10 | Won | R+22.1 | R+20.7 | +1.4 |
| 2018 | Arizona State Senate, District 16 | Won | R+22.9 | — | — |
| 2016 | Arizona State Senate, District 16 | Won | R+30.0 | — | — |
| 2014 | Arizona State Senate, District 16 | Won | R+31.8 | — | — |
| 2014 | Arizona State Senate, District 16 (primary) | Won | +10.9 | — | — |
| 1998 | Arizona State Senate, District 4 | Lost | D+10.3 | — | — |
| 1996 | Arizona State Senate, District 4 | Lost | D+8.9 | — | — |
| 1994 | Arizona House of Representatives, District 4 | Won | R+4.4 | — | — |
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $24.3K
- Spent
- $4.5K
- Cash
- $26.3K
Source: Arizona Secretary of State filings through Sep 30, 2026Updated Nov 7, 2026, 1:20 PM ET
Campaign committees
Open committees can still raise and spend money.
| Farnsworth for Senate State | Active |
Source: Arizona Secretary of State filings through Sep 30, 2026Updated Nov 7, 2026, 1:20 PM ET
Seats Farnsworth has held
- Arizona State Senate, District 10 · since 2022
- Arizona State Senate, District 16 · since 2014
- Arizona House of Representatives, District 4 · 1994–1996
Source: 99chambers results archive
Who Farnsworth has run against
- Blair Moses (D) · 2026 election, won
- Robert Doyle (I) · 2024 election, won
- Nick Fierro (I) · 2022 election, won
- Benjamin Carmitchel (D) · 2018 election, won
- Scott Prior (D) · 2016 election, won
- Jack A. Brown (D) · 1998 election, lost
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)
How we know Farnsworth
One person, matched across every source we use.
- Open States ocd-person/263ebe9c-566a-4b5c-bfbc-ea1f1d0dc3f2
- Wikidata Q16148551
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:51 PM ET