2020Flipped from RepublicanFinal resultsIncumbent defeated
2020 election for Pennsylvania Senate District 9
Pennsylvania State Senate · Pennsylvania
John Kane (D) won with 52.0% of the vote, defeating Thomas H. Killion (R) by 3.9 points, flipping a seat Republicans held.
John KaneDemocrat · winner
52.0%80,150
Thomas H. KillionRepublican · incumbent
48.0%74,114
154,264 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
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)