1990Flipped from DemocraticFinal resultsIncumbent defeated
1990 election for Pennsylvania House District 31
Pennsylvania House of Representatives · Pennsylvania
Dan Anderson (R) won with 50.6% of the vote, defeating Brian D. Clark (D) by 1.3 points, a seat Democrats won last time.
Dan AndersonRepublican · winner
50.6%7,899
Brian D. ClarkDemocrat · incumbent
49.4%7,700
15,599 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET