2016Final resultsIncumbent defeated
2016 election for Maine Senate District 18
Maine State Senate · Maine
Lisa M. Keim (R) won with 56.2% of the vote, defeating John L. Patrick (D) by 12.4 points.
Lisa M. KeimRepublican · winner
56.2%11,603
John L. PatrickDemocrat · incumbent
43.8%9,040
20,643 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 2016
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET