CalledUnofficial results
Montana House District 89
Montana House of Representatives · Montana
Mark A Thane won re-election by 24.1 points over Lyn Hellegaard.
Mark A ThaneDemocrat · winner · incumbent
62.1%3,345
Lyn HellegaardRepublican
37.9%2,044
5,389 votes
Source: Montana Secretary of State unofficial resultsUpdated Nov 7, 2026, 1:22 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.
Mark A ThaneLyn Hellegaard
$16K
Raised by the campaign
$16.4K
$20.8K
Spent by the campaign
$12.1K
Campaign money: Montana Commissioner of Political Practices, through Oct 15, 2026; Montana Commissioner of Political Practices, through Sep 16, 2026.
Source: Montana Commissioner of Political Practices campaign filingsUpdated Sep 16, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Mark A Thane
- 98%
- Lyn Hellegaard
- 2%
- Projected margin
- D+15.5