I suspect Barry "Goldwater" Obama is stretching himself a little much.
It's true he's got a very large treasury, but the money is after all limited, and could run out.
One recent example is that apparently his campaign expects him to show up in Omaha, with the hopes of getting at least one of Nebraska's five electoral votes (Nebraska, like Maine, gives an electorial vote to the winner of a congressional district, instead of the winner of the statewide vote).
This threw me for a loop, because in the past, the Democrats have always expressed a hope of getting one electoral vote from Nebraska.....from the congressional district of Lincoln, not Omaha. Lincoln of course being the state capital and home of the University of Nebraska, thus governmental employees and students who lean Democrat.
But it never happened; Lincoln remained red.
And so now Omaha, the largest city in the state, and home to the labor unions and special interests; a city once dominated by one of the most vile, the most corrupt, urban political machines (one can guess the party)--but a city that during presidential elections sometimes votes more red than even Lincoln.
In answer to the obvious question, Omaha is circa 8% of those African-derived.
My prediction for the election, as stated in the nocturnally foul one's stickied comment, still stands, and this is one of the ways it's going to happen. An overambitious campaign at the beginning, money being tossed hand-over-fist, money (and time) starting to dry up, money (and time) evaporating, and so a desperate last-stand effort to carry at least a few usually-Democrat states.
Just as what happened in 1972 and 1984.