2018Final results
2018 election for Montana House District 77
Montana House of Representatives · Montana
Mark Sweeney (D) won with 59.6% of the vote, defeating Heather Blom (R) by 23.8 points.
Mark SweeneyDemocrat · winner
59.6%2,980
Heather BlomRepublican
35.8%1,789
Dick MottaLibertarian
4.7%234
5,003 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