Looking at his Twitter feed is quite an experience. I see mostly attacks on vaccines and the medical/ pharmaceutical establishment (he even promotes HCQ), and some isolationist foreign policy.
There is little if anything here to appeal to a Democratic primary electorate. His friendly commenters are mostly right-wing. I wouldn’t be surprised if he soon starts making vaguely anti-abortion statements, but that’s just speculation.
What on earth does he think he’s doing?