Yesterday, by the Beatles.
Trump is never going to prison, in fact, we'd be lucky if any of these trials will actually be underway by the time he gets reelected. It's a con, people think this is like the movies, bad guy gets arrested, is convicted the next day, 5 minutes later he's put in prison for life. In reality, just the jury selection alone will amply stall things till it's too late. As intended.
Notice how it's all the civil suits that are going on now? Money, because THAT'S what's of concern to Trump. The criminal trials will wait.
And let's say any of them actually do happen. His basic defense, as usual, for everything, is that he's just too old and stupid to realize what he was doing when he did it. So some underlying who drafted the papers for him that Don authorized and signed will take the fall, and go to prison, while Trump goes scot free,