The FBI’s role in regards to Fusion GPS and the Russian investigation needs to be investigated, which is why the Wall Street Journal’s editors believe Mueller should step aside.

“Mr. Mueller is a former FBI director, and for years he worked closely with Mr. Comey,” the editors wrote. “It is no slur against Mr. Mueller’s integrity to say that he lacks the critical distance to conduct a credible probe of the bureau he ran for a dozen years. He could best serve the country by resigning to prevent further political turmoil over that conflict of interest.”