Obama had a +6 favorability rating in PA according to exit polls, Hillary right now is -16 so it's very likely she will do worse than Obama's 52-47 win maybe a Kerry's-sequel performance but Kerry was never as unpopular as her.
Your cherry picking facts. Obama's approval ratings were severely underwater during the 2012 campaign. PPP generally had Obama with approval ratings in between high 30s and low 40s in PA. Its very likely PPP is doing what it always does and over estimates republicans until a few months before the election where they fix themselves so they don't look stupid.
