It all depends on the circumstances of prison. Take him somewhere where there are no gangs getting to him. Handle him correctly, but with zero empathy,no goodwill,no good behaviour, nothing. There is zero comfort, zero safety beyond the rules of the institution.
It is absolutely possible to make that happen - and the US does a mighty fine job at it in the more advanced institutions like Florence from what I hear.
Real life is no prison movie,mate.
The real risk is that the orange is pardoning him if he gets to power …