Ah, finally a post that can't be interpreted as anti-Hillary.
Tom Schaller is on a tear about black voters in the South.
FOR THE THOUSANDTH TIME: BLACKS ALREADY TURN OUT AT HIGH RATES AND VOTE OVERWHELMINGLY DEMOCRATIC IN THE SOUTH.
What he means is: there are legitimate demographic arguments to be made about Barack Obama's candidacy, but his ability to enhance the competitiveness of Democrats in Southern states because of his race is probably not one of them.
(For one demographic argument that does work, see Ron Brownstein's firewalled National Journal cover, "A Party Transformed.")