[...] Invisible blog directs our attention to this SF Chronicle article exploring Obama’s chances in the south in November: “I think we’re going to see the largest African American turnout in the history of the country this fall,” said Merle Black, a leading scholar of Southern politics at Emory University and author with his twin brother, Earl, of “Divided America: The Ferocious Power Struggle in American Politics.” African Americans typically vote 90 percent Democratic, and Obama could push that to 95 percent, Black said. Jump Here [...]