When Sen. Hillary Rodham Clinton shows up in Selma, she won't have to talk about race. All Clinton has to do is cross the Edmund Pettus Bridge -- the infamous site of the showdown between disenfranchised voters and state troopers -- on the arm of former President Bill Clinton. Bill Clinton, who was dubbed by Toni Morrison as the "first black president," is still hugely popular with African Americans. His presence in Selma on Sunday is designed to stop the flow of black support to Sen. Barack Obama. A national poll initially had Hillary Clinton leading among black voters 60...