Off work now and reading the transcript. I love that Senator Wyden managed to slip this into the open testimony part of the hearing.
What was it about the attorney general's own interactions with the Russians or his behavior with regard to the investigation that would have led the entire leadership of the FBI to make this decision?

James Comey:
Our judgment as I recall was that he was very close to and inevitably going to recuse himself for a variety of reasons, we also were aware of facts that I can't discuss in an open setting, that would make his continued engagement in a Russia related investigation problematic