For over three decades, Carly Fiorina's bachelor's degree from Stanford University in medieval history and philosophy has had little real-world application. But as she mounts a presidential bid, the Republican candidate says her degree is finally of use as she considers how she would deal with ISIS as commander-in-chief. "Finally my degree in medieval history and philosophy has come in handy," Fiorina said Sunday night, "because what ISIS wants to do is drive us back to the Middle Ages, literally." Fiorina was responding to a question from a member of the military at a town hall in Windham, New Hampshire,...