Lisa Page and Peter Strzok, the reported FBI lovebirds, are the poster children for the next “Don’t Text and Investigate” public service ads airing soon at an FBI office near you. Their extraordinary texting affair on their government phones has given the FBI a black eye, laying bare a raw political bias brought into the workplace that agents are supposed to check at the door when they strap on their guns and badges. It is no longer in dispute that they held animus for Donald Trump, who was a subject of their Russia probe, or that they openly discussed using...