2016Final resultsIncumbent defeated
2016 election for Montana House District 100
Montana House of Representatives · Montana
Andrea Olsen (D) won with 79.2% of the vote, defeating David Moore (R) by 58.5 points.
Andrea OlsenDemocrat · winner · incumbent
79.2%4,379
David MooreRepublican · incumbent
20.8%1,148
The same year, the district voted D+53.1 for president; this race was D+58.5.5,527 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET