From Comey's Second Hearing in December:
Mr. Gowdy. One final question. When was Andy McCabe named the Acting Director of the FBI after your firing?
Mr. Comey. I don't know the answer to that.
Mr. Gowdy. Well, from the time you were fired until the time he was named Acting Director, who ran the FBI?
Mr. Comey. I don't know. I have an assumption that the Deputy Director immediately became the Acting Director, but I don't know the answer to that.
THE CORRECT ANSWER IS JAMES COMEY, UNDER CIA ORDERS.