This is another really good results for Dems in a state that went extremely poorly for them overall. He doesn't quite have the same rural appeal that Klobuchar does based on these numbers, but he didn't really need it. He may not have as much appeal in places like Iowa/Wisconsin as Klobuchar, but maybe! Plus, if the Dems take Ohio suddenly those aren't as important.
I don't know much about Bob Casey or Tom Wolf, so I don't know what sort of national appeal they have. But that would be a really good way to shore up what is probably the most important of those three states. I am fairly confident Michigan comes back, but Wisconsin and Pennsylvania are a bit more uncertain to me.
I'm just trying to find good candidates for 2020 that have a good chance winning the three states we really need to win back.