I agree at the moment (well MI rather than PA), as I just posted elsewhere, the Trump collapse in Oakland County Michigan, and the WOW counties in Wisconsin, representing his weakness with better educated white suburban voters, is just too great for Trump to carry either state, even if Trump, as he seems to be doing, is grabbing a considerable number of normally Democratic white working class voters in the hinterlands of those two states (which do make up a substantial percentage of the population in each states). He needs to entice back a considerable number of those voters that normally vote Pub that don't like him. So far, there is no evidence of that happening. Ditto for the Philly burbs.
The Marquette poll?