2012Final results
2012 election for Minnesota House District 3B
Minnesota House of Representatives · Minnesota
Mary Murphy (D) won with 64.9% of the vote, defeating Keith Macdonald (R) by 30.0 points.
Mary MurphyDemocrat · winner · incumbent
64.9%14,366
Keith MacdonaldRepublican
34.9%7,727
22,124 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 2012
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET