Strzok was one of the FBI’s top counterintelligence agents supervising the investigation of Clinton’s controversial email problems. He subsequently joined Robert Mueller’s Trump/Russia investigation, and the question lingers as to why his obvious anti-Trump prejudice was not uncovered in his job interview for the position with Mueller.

Why didn’t McCabe warn Mueller of Strzok’s likely bias, which he should have known from his own day-to-day conversations with Page and Strzok at FBI headquarters? Page reportedly worked for McCabe, who certainly also had frequent contact with Strzok — again, the FBI’s No. 2 counterintelligence agent.

This assessment is admittedly speculative, but it is speculation grounded in common sense.