Trebuchet
Penultimate Amazing
25th Ammendment? Never gonna happen, and will be declared unconstitutional and anybody who floats it will be indicted.Depends on what you're counting. Dump? My take is still that I don't know if it'll even be three years until he gets 25th amendment'ed or finally eats one hamburger too many, causing his vast mass to collapse in on himself and turning him into a black, sorry, orange hole that'll hopefully suck in a couple sycophants or two who can't escape the event horizon (they should know to get their heads out of his orifice and start running when he starts turning into a superdupernova, but you know how ignorant they are and they might just stand there and watch the spectacle). So if you're counting until the end of Dump, I give him three and a half years maximum.
After that? To make a pretty uneducated guess, all bets are off. I don't understand how the USA works anymore and to be honest I probably never did.
Massive coronary? Quite possible, but like Trump's role model, North Korea, the regime will continue.
Three and a half years is, of course, beyond Trump's constitutionally mandated term So either he'll have been declared President for Life or a loyal stand-in will have been appointed. He won't even move out of the White House.