“Why isn’t Holder in prison ?”
Because Sessions was put in place specifically to keep Holder and his friends out of prison.
And Holder’s threat is not an idle one. He has copies of the FBI files on every Senator and Congressman. If they go against him, all the bad things they have done will come to light. This is why Session’s mission (protect Holder et al) is so vitally important to Congress.
When is Sessions going to step aside for the good of the country and left a tough street fighter get in there to clean it up? Trump needs to ask him for his resignation.