It's sickening how the communist in chief is turning this once great country into a banana republic shithole. I hope and pray that Trump wins in November and PROSECUTES all the wrongs that have been done the last 8 years.
My understanding is the head of the Justice Department (Attorney General) can fire the FBI Director. The President probably wouldn't fire an FBI Director, but he could ask (tell) the Attorney General to do so.
Let me know if I'm wrong.