CHARLOTTE, North Carolina — Liz Wills remembers the unbelievable feeling when Barack Obama entered the White House in January 2009. Now she looks fearfully at the specter of his defeat by a Republican candidate she sees as gripped by the racist right. "I'm old enough to have seen the 'black' and 'white' signs for bathrooms, schools segregated, you couldn't ride in the front of the bus or the train. I saw all of that. I lived through that," Wills, 73, of Durham, North Carolina, told AFP. "It's not supposed to be segregated now but there's a lot like that still....