Mitt Romney at Shady Brook Farm, Morrisville, PA, November 4, 2012

Crowd estimate from Romney's Pennsylvania rally, according to Secret Service, are 25,000. One of his biggest events all year.

— Ashley Parker (@AshleyRParker) November 5, 2012

WaPo: "Romney’s Pennsylvania volunteers: It’s for real" – http://t.co/AVUTo2A4 #RomneyRyan2012 #PA4Mitt

— Kevin Madden (@KevinMaddenDC) November 5, 2012

It is freezing in Pennsylvania tonight, but still over 30,000 people showed up at our rally. Just unbelievable.

— Garrett Jackson (@dgjackson) November 5, 2012