** FILE ** President Obama (right) shakes hands with Princeton University Professor Cornel West (center) and poet Sonia Sanchez (left) after delivering remarks at the National Urban League's 100th anniversary convention in Washington on Thursday, July 29, 2010. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

** FILE ** President Obama (right) shakes hands with Princeton University Professor Cornel West (center) and poet Sonia Sanchez (left) after delivering remarks at the National Urban League's 100th anniversary convention in Washington on Thursday, July 29, 2010. (AP Photo/Pablo Martinez Monsivais)