As a former Pennsylvanian of 8 years, the cacs out here couldn't stand Hilary, One she was a woman and two she was a outsider in the sense that she couldn't relate at all to them being a corporate democrat who couldn't ingratiate herself with the more rural feel & culture of the rust belt , she also comes across as not genuine
The difference here is that Joe is actually from the state, which helps alot in his case of ingratiating himself with the voters because he's perceived as a local and alot of male cacs even if they don't agree with his politics can definitely respect a man like Joe Biden at the very least. He should be able to flip some Obama-Trump districts back to blue which is the way they were before 2016 where Obama and Biden outperformed polls in both 08' and 12' to win by a pretty solid margin in each election