In a recent interview, a well-known professor who taught at Columbia University for 46 years questioned whether or not President Obama actually attended the Ivy League school. Prominent Columbia professor Henry Graff says he isn't sure President Obama ever attended the Ivy League school. “I taught every significant politician that ever studied at Columbia,” said Columbia Emeritus Professor of History Henry Graff, in an interview last week with Wayne Root, a contributor at The Blaze. “Between American History and Diplomatic History, one way or another, they all had to come through my classes.” “Not Obama,” he continued. “I never had...