I wonder if he'll need to break something bad enough to get kicked out?
American elections are already ritualized. You can't really vote for an anti-oligarch/regulate corporations candidate unless you're in a couple districts. There are very few "rule of law" candidates. There's no voting based way to get congress persons to stop trading stock.
I think there will be the performance of voting in 3.75 years, but even less substance to it than we already have.
It is more likely he gets kicked out if he humiliates Trump somehow.