It's hard to imprison a president (he's also protected by the secret service from any threat, even the police), first he has to be impeached and then tried by the senate. But normally they can just resign and I'm sure it won't be pushed.Presidents dont go to prison. Even the dude on 24 never went to prison.
Still, for Trump it's a different ballgame if it pans out, since it deals with collusion with another foreign government. If it's proven, it's possible he can't just resign and it'll all die down.
But never know, since the Senate has all the cards.
This is disgusting.
Anyway I hope the trolls aren't acting like this Russia thing came alive after Trump won, it was in play for months before the election.