Pennsylvania goes Democrat when white, blue collar workers vote Democrat. They want jobs, healthcare, infrastructure. They care about climate change but they don’t want to go too crazy over it. They don’t give a #### about Russia. They don’t like socialism. Someone like AOC, Bernie Sanders, or Liz Warren is going to turn them right off.
Last time around they voted against Hillary, not because of her politics, not because she was Establishment, but because they didn’t like her and didn’t trust her. They liked what Trump said about jobs and decided to give him a chance. Now they’re sick of hearing about Trump so there is an opportunity to win them back. But only with a centrist.