He’s just trying to hold a handful of states (Cal, Oregon, Wash, Vermont, Rhode Island, New York) so that he doesn’t get crushed worse than McGovern or Mondale did.
He's got to make sure Hollyweird will still give him his new talk show as the new male Oprah once he's out of office. If he goes down as a hero for the radical left's causes, his post-presidential career in the world of the left will be well-secured. If he goes moderate and loses the election, they'll blame him for both selling them out and not even getting to keep the White House to show for it.