Native Pennsylvanian here, Pittsburgh area to be specific. Still follow politics out there very closely. It doesn't take a political genius to spot that the Democrats weakness is but they have so little support outside greater Philly. They have a reasonably sized vote sink in Allegheny County, and a couple counties like Lackawanna and Dauphin where they technically one but by thin enough margins that it did very little for Clinton's net vote total. So yeah, greater Philly and Allegheny county is about it. The entire rest of the state runs the gamut from tilt D in a handful counties to Ruby Atlas red. It's not just Western Pennsylvania either.
This is why Obama's first stop is Philly. Juicing turnout there is vital.
