Statewide PA elections are now decided in the Philly suburbs (e.g. Chester, Montgomery, Bucks counties, etc.) and Trump is plummeting there, particularly among women. Obama and Shapiro will lead the get-out-the-vote charge, and Trump will be defeated in the Keystone State.
When 16% of registered Republicans (PA primaries are closed) make a point to vote for someone other than Trump -- who is already assured the nomination -- that should really give them pause. dbm and the like can come up with all the convoluted polling data they want, but PA Republicans are telling us something.