2020Final results
2020 election for Maine House District 15
Maine House of Representatives · Maine
Margaret M. Oneil (D) won with 58.1% of the vote, defeating Marc Chappell (R) by 16.1 points.
Margaret M. OneilDemocrat · winner · incumbent
58.1%3,447
Marc ChappellRepublican
41.9%2,490
5,937 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET