Poll Manager, Melvin Davis Jr. unlocks the voting machines  at Grady High School,  Tuesday, Nov. 6, 2012 in Atlanta. (AP Photo/Atlanta Journal-Constitution, John Spink)

Photo by: John Spink

Poll Manager, Melvin Davis Jr. unlocks the voting machines at Grady High School, Tuesday, Nov. 6, 2012 in Atlanta. (AP Photo/Atlanta Journal-Constitution, John Spink)