2018Final results
2018 election for Maine House District 21
Maine House of Representatives · Maine
Heidi H. Sampson (R) won with 52.6% of the vote, defeating Kelcy McNamara (D) by 13.7 points.
Heidi H. SampsonRepublican · winner · incumbent
52.6%2,296
Kelcy McNamaraDemocrat
38.9%1,700
Justin L. ReinhardtGreen
8.5%369
4,365 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