Our Pennsylvania polling average now shows Biden +5.5, which really reduces the split with Wisconsin (B +6.8) and Michigan (B +6.9) as well as with national polls (B + 7.0).https://t.co/wKbW02AGO5 pic.twitter.com/9zacNqYBdU

— Nate Silver (@NateSilver538) September 29, 2020