Flipped from RepublicanCalledUnofficial resultsIncumbent defeated
Alaska House District 15
Alaska House of Representatives · Alaska
Denny Wells flipped the seat for Democrats, winning by 5.0 points over Mia Costello.
Top-four primaryRanked-choice voting
Denny WellsDemocrat · winner
52.5%3,206
Mia CostelloRepublican · incumbent
47.5%2,900
6,106 votes
Source: Alaska Division of Elections unofficial resultsUpdated Nov 7, 2026, 12:47 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
No DemocratMia Costello
—
Raised by the campaign
$52.1K
—
Spent by the campaign
$35.2K
Campaign money: Alaska Public Offices Commission, through Oct 22, 2026.
Source: Alaska Public Offices Commission campaign filingsUpdated Oct 22, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Denny Wells
- 75%
- Mia Costello
- 25%
- Projected margin
- D+4.7