2008Final results
2008 election for Montana Senate District 18
Montana State Senate · Montana
John Brenden (R) won with 52.0% of the vote, defeating Shirley Baumgartner (D) by 4.0 points.
John BrendenRepublican · winner
52.0%4,736
Shirley BaumgartnerDemocrat
48.0%4,369
9,105 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2008
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET