2018Flipped from RepublicanFinal resultsIncumbent defeated
2018 election for Pennsylvania House District 165
Pennsylvania House of Representatives · Pennsylvania
Jenn O'Mara (D) won with 50.8% of the vote, defeating Alexander T. Charlton (R) by 1.6 points, a seat Republicans won last time.
Jenn O'MaraDemocrat · winner
50.8%16,627
Alexander T. CharltonRepublican · incumbent
49.2%16,096
32,723 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