We'd have some sort of celebrity president, from how ever many thousand decide to vote for them.
I'd say that every state would vote for someone different. That way the winner would be out of whoever won California, Texas, and Florida/New York (not sure how that would work in an EV tie) and would be decided on by the house.
Congratulations, President Mike Smith!
If all Mike Smiths vote for themselves, that would be one vote for each Mike Smith, so it wouldn't work that way.
Well thankfully we don't have to worry about
that happening in real life