16 things that will happen when Obama comes to Columbia - Columbia Spectator
Ex-president's Alma Mater Launches Obama Scholars Program
Evy Poumpouras - In May of 2012, President Barack Obama delivered the commencement speech to the graduating class at Columbia University, his alma mater. As part of his United States Secret Service
Columbia University president causes stir with Obama announcement - POLITICO
Grace: President Obama and Ten Days in the Battle for America (Hardcover) | Third Place Books