2018Final results
2018 election for Montana House District 89
Montana House of Representatives · Montana
Katie Sullivan (D) won with 62.4% of the vote, defeating David Moore (R) by 24.8 points.
Katie SullivanDemocrat · winner
62.4%3,121
David MooreRepublican
37.6%1,879
5,000 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET