What does Jeff Sessions have to do to get a nice tweet from his boss?

On Thursday the attorney general released a letter informing Congress that he’d asked Utah-based U.S. Attorney John Huber to investigate lawmakers’ complaints about the Justice Department and the FBI. Turns out Mr. Huber has been working on this investigation, in concert with the Justice Department’s inspector general, since November. The news of Mr. Huber’s appointment came two days after a statement from FBI Director Christopher Wray confirming a similar...