Some interesting numbers from the preliminary exit polls:

According to numbers shown on Fox News, Obama holds a solid 10 point lead over Hillary on who voters think is qualified to be "commander-in-chief," 53%-43%.

We've been hearing that phrase a lot lately from Hillary, obviously, but among Mississippi voters at least her pitch doesn't seem to be working. On the other hand, that's a smaller spread than the margin of victory Obama will almost certainly emerge with tonight.

Separately, the Associated Press has an interesting finding from the exits: Obama voters appear to like Hillary better than Hillary voters like Obama. And they want him to pick Hillary as a running mate.

While six in 10 Obama voters said he should pick Hillary for veep, only four in 10 Hillary voters said she should pick him, suggesting that her harsh criticism of him may be sinking in with her supporters.

We'll be blogging the results right here at Election Central.