Juan is likely just a Maverick Tool here. Enough to put him in the same cell as Leaky Leahy though.
And he can’t be allowed to just go back home and retire.
He’s too crazy and would continue his nefarious work to undermine Trump.
Fredo couldn’t be trusted anymore by Michael. (Though killing your own brother is a bit much!!)
McCain can NEVER be trusted by Trump. Even out of office. He needs to go to prison.
In another time, he would be shot if found guilty