It will be either Michelle or Hillary by acclamation at the convention. The media will love the drama. The ballots will be counted and Trump will lose. Officially, it won’t be a surprise at all.
It'll be Gavin Newsom. He's actually soft-running, unlike the other two.
As soon as Trump clinches the nomination, the Democrats are going to pull the ole' switcheroo and Newsom will be their nominee.
It certainly won't be Hillary, the only person who ever lost an election to Trump. And Big Mike seems content in living a wealthy, leisure-filled life hanging out with A-list celebrities. She doesn't want to inherit the mess Biden will put on her plate.