Trump is POTUS. He is in charge of the DOJ. He can have Sessions get anything from the FBI that he needs to protect this country. We have several months of bitching and complaining because the FBI Director was yet to be appointed. Now that Wray is there he needs to start working. Do you see the chain of command? Trump to Sessions to Wray. I don’t see this records director in any management position to usurp the three mentioned. The only way this stands is if Trump allows it. So far he has failed to fight anything with Clinton and/or Obama. What could they possibly be waiting for?
Bingo. He has staff that are openly defying him and yet they remain.
Same with Congress the reason we don't get tax reform is they don't want to reform their income source.