2020Final results
2020 election for Pennsylvania House District 129
Pennsylvania House of Representatives · Pennsylvania
James A. Cox Jr. (R) won with 57.3% of the vote, defeating Kelly McDonough (D) by 14.7 points.
James A. Cox Jr.Republican · winner · incumbent
57.3%21,037
Kelly McDonoughDemocrat
42.7%15,651
36,688 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