99chambers
CalledUnofficial results

Arizona Legislative District 25

Arizona House of Representatives · Arizona

Michael Carbone and Nick Kupper won the district's 2 seats.

Two representatives per district

Michael CarboneRepublican · winner · incumbent
35.1%41,362
Nick KupperRepublican · winner · incumbent
32.9%38,728
Tiffany ByrneDemocrat
31.6%37,232
Unofficial Write-inOther party
0.3%309
Unassigned Write-inOther party
0.1%71
117,702 votes

Source: Arizona Secretary of State unofficial resultsUpdated Nov 7, 2026, 12:53 PM ET

Where the race moved

Against the 2024 presidential vote

The seat's recent races

EvenR+21.22024 HouseR+29.62024 Pres.R+2.02026 House

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)

Money in this race

Each line compares the two campaigns on one scale.

Tiffany ByrneMichael Carbone
$61.1K
Raised by the campaign
$131.2K
$57.7K
Public matching funds
—
$41.6K
Spent by the campaign
$34.4K
$19.5K
Cash on hand
$132K

Other candidates' campaigns: Nick Kupper $43.6K.

Campaign money: Arizona Secretary of State, through Jul 27, 2026; Arizona Secretary of State, through Sep 16, 2026.

Source: Arizona Secretary of State campaign filingsUpdated Jul 27, 2026

Pre-election forecast (final, Nov 3)

Our model's last run before Election Day, Nov 3, 2026. It no longer updates.

Tiffany Byrne
1%
Michael Carbone
99%
Projected margin
R+20.8
How the forecast works →

The candidates

Michael Carbone (R)
Incumbent, Arizona House of Representatives, first elected 2022Nick Kupper (R)
Incumbent, Arizona House of Representatives, first elected 2024Tiffany Byrne (D)

Also on the ballot: Unofficial Write-in (Other party), 0.3%; Unassigned Write-in (Other party), 0.1%