The president’s PR machine is missing. Bill Clinton didn’t have to write a mystery with James Patterson, but he did. And in doing publicity for “The President is Missing,” Clinton has walked into a PR buzz saw. On the Today show, in a pre taped interview, Clinton was ambushed on a number of subjects. But the worst of it was about Monica Lewinsky. In this new climate of #MeToo, Clinton left himself open to questions about his affair with Lewinsky, who was his White House intern when he was president in 1998. What was possible to get away with 20...