MSNBC and Fox call Mississippi for Obama. No totals yet.
So how does this effect Obama's delegate lead? Pretty much no matter what happens, he'll equal -- based on tonight's results alone -- Hillary's gains on March 4th.
MSNBC's Chuck Todd is crunching the math right now on the air. If Obama gets 63% or more he'll net nine delegates. If he gets less than that, he's still likely to net seven -- which, again, would equal Hillary's March 4th gains.
More in a bit.
Late Update: Political obsessives were asking today what sort of results Obama would get among whites in this deep south state. The exits show that he got barely a quarter. She only won a meager one out of 10 blacks.
But, in an interesting finding, Obama won handily among low and middle income voters, indeed among almost all income groups, and only lost to Hillary among voters with a family income over $75,000.
What's more, Mississippi voters, at least, see Hillary as the negative candidate in the race by a large margin. Fifty-nine percent said she attacked him unfairly, while only 38% said he attacked her unfairly (though that could end up roughly tracking with the spread of the electorate in general).
Late Update: The latest results: With 29% in, Obama leads, 56%-42%. But the spread is likely to grow, so he's got a shot at getting his total over 60%. Obama's expected to net at least seven delegates tonight.
Late Update: An interesting moment from Obama on CNN -- he makes a subtle allusion to the heavy-artillery that Hillary has been lobbing at him of late:
I have been careful to say, that I think that Senator Clinton is a capable person and that should she win the nomination, obviously, I would support her. You know, I'm not sure that we have been getting that same approach from the Clinton campaign.
This line from Obama, obviously, is a wry reference to Hillary's repeated claim that he hasn't passed the "commander in chief test" and that he won't be able to face John McCain with the "lifetime of experience" that she has under her belt. But in fairness, it should be noted that the Hillary camp has repeatedly said that she will "enthusiastically" support Obama should he become the Dem nominee.