First, look at this:
Then, look at the fact that non-blacks constitute 63% of Mississippi's population.
Therefore, Obama never stood a chance of winning the state.
So if 100% of the black population (37% of total population) votes for Obama, then only 13% of the white population has to vote for Obama. It's that far out of the question.
Wrong. Since whites are about 60% of Mississippi's population (about 3% is other), then 13/60 is about 22% and that is the percent of the white vote that Obama will need to win MS if he wins 100% of the black vote. That is assuming there is equal turnout between whites and blacks proportional to their total population.