2018Final results
2018 election for Montana Senate District 4
Montana State Senate · Montana
Mark W. Blasdel (R) won with 64.5% of the vote, defeating Diane Frances Taylor (D) by 29.0 points.
Mark W. BlasdelRepublican · winner · incumbent
64.5%5,626
Diane Frances TaylorDemocrat
35.5%3,097
8,723 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