Four More Years: Obama 2012: OFA2012_012

August 14th, 2012 - WATERLOO, IOWA: President Barack Obama speaks at an event in Waterloo, IA. (Scout Tufankjian for Obama for America/Polaris)

August 14th, 2012 - WATERLOO, IOWA: President Barack Obama speaks at an event in Waterloo, IA. (Scout Tufankjian for Obama for America/Polaris)