However Mr. Comey chooses to characterize the cases he was supposed to be overseeing, he is now saying that neither at that time nor in the more than two years since did he ever know or bother to find out how investigations of political campaigns begin or who authorizes them. Wouldn’t even a passionate anti-Trumper—which Mr. Comey is—be at least curious how the machinery operates when his own subordinates take the extraordinary step of investigating the party out of power?

At least according to his Friday testimony, Mr. Comey did not become any more interested in details once the FBI surveillance machinery was grinding its way toward a series of wiretaps. By now many Americans have understandably grown weary of the various Russian collusion claims. But in the summer and fall of 2016 the FBI was supposedly trying to determine if a hostile foreign power had compromised a leading candidate for President.