2000Flipped from DemocraticFinal resultsIncumbent defeated
2000 election for Montana House District 55
Montana House of Representatives · Montana
Dave Lewis (R) won with 56.3% of the vote, defeating Mary Anne Guggenheim (D) by 12.7 points, a seat Democrats won last time.
Dave LewisRepublican · winner
56.3%2,651
Mary Anne GuggenheimDemocrat · incumbent
43.7%2,055
4,706 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 2000
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET