And one of Michigan, Ohio, or Florida.

Given that he is the nominee, what states would be at threat of being list by not being progressive enough?
Is California going to reject him for that? New Jersey? Maryland? Nah. They'll go his way no matter what against Trump.

So he should be looking at what message the rust belt receptive to. If they want a reconciliation story, he's gonna give it to them. If they are hesitant about the aggressive agenda of the other candidates, he can back off.

I don't think he's really running a primary campaign. He doesn't have to. His electorate is already in place and isn't going to shift much. Primary wise, he's just hoping no one particular candidate gains steam. If 4-5 people stay in to the end, it's his nomination easy

So he's running a general election campaign now