Homeland Security Secretary Jeh Johnson’s newest appointee to his inner circle, chief of staff Christian Marrone, rose to Washington power player via the streets of Pennsylvania’s pay-to-play politics. Mr. Marrone acknowledged in court that as a Pennsylvania legislative aide he oversaw the private renovation of his politician boss’s mansion — all while drawing paychecks from taxpayers ... “You’re looking at a state not unlike New York, New Jersey and Illinois for pay-to-play politics,” Mr. Madonna said. “But it’s pretty fundamental that you aren’t supposed to work privately when you’re supposed to be on the state payroll, and he was on...