PA resident here.
PA is a toss up now. We have a closed primary. Trump got almost as many votes as Hillary (within 50 thousand). of course Hillary will add a lot of Bernie votes, but most likely not as many as she expects.
Now that Obama is not running, and his last 8 years have been pretty crappy from an economic view I think the Dems will have a lot less enthusiasm, much the like the republicans in 2012
The independents will likely go 3 out of 4 to Trump.
I put it as a toss up only because it depended on what percentage of Kasich/Cruz voters decide to sit it out that will determine if Trump wins or losses in PA.
I think the same applies in Michigan and Ohio, the metric is the same declining industrial states where trump is the only candidate that seems to care.
Only if you can eliminate the voter fraud in Philly. Otherwise, if it is close, the Dems will win...
I don’t think Bernie voters will go Hillary.
Biggest question is how many stay home?
Next question is will Philadelphia have 130% turnout?