Heavy turnout in Philadelphia.
And if anyone tells you urban voters or young voters are apathetic and vote in low percentages, remember that no one removes their voter registrations when they move or re-register in a voter registration drive -- PA just lets it age off the list after two missed elections. The denominator for people who rent and move frequently is grossly exaggerated (about 10% in my experience canvassing).
https://www.insidernj.com/heavy-election-day-turnout-early-in-philadelphia/