FILE - In this Sunday March 4, 2007 file photo, from left, Brown Chapel AME Church pastor James Jackson, De 00004000 mocratic presidential candidate Sen. Barack Obama, D-Ill., Rep. John Lewis, D-Georgia, and Rev. Clete Kiley, hold hands and sing at the end of a church service in Selma, Ala. on the commemoration of the Rev. Martin Luther King Jr . protest march from Selma to Montgomery, Ala. How unthinkable it was, not so long ago, that a presidential election would pit a candidate fathered by an African against another condemned as un-Christian. And yet, here it is: Barack Obama vs. Mitt Romney, an African-American and a white Mormon, representatives of two groups and that have endured oppression to carve out a place in the United States. How much progress has America made against bigotry? (AP Photo/Rob Carr)