Here are the results so far:
7,697-vote margin for Childers
Greg Davis (R): 49,285 votes (46 percent)
√ Travis Childers (D): 56,982 votes (54 percent)
99.8 percent of precincts reporting at 10:55 PM Eastern
Update [2008-5-13 22:16:35 by Jonathan Singer]: The AP calls it for Childers!!!
Update [2008-5-13 22:3:44 by Jonathan Singer]: Childers' lead is down to just 700 votes with a little under three-quarters of the vote in. Weirdly enough, though, this might actually be good news for the Democrat. Why? Almost all of the vote (about 95 percent) from DeSoto County, which is by far the biggest GOP stronghold in the district, has reported, so there isn't a whole lot of favorable territory left out there for Davis. What's more, while Davis won DeSoto by an 81 percent to 17 percent margin last time, he only leads 74 percent to 26 percent at this point. With none of Democratic-friendly Prentiss County reporting (though none of the last GOP county, Tate, reporting either), this one will go down to the wire.
Update [2008-5-13 21:47:56 by Jonathan Singer]: A big chunk of DeSoto County just reported, pushing Davis up closer to Childers. Tate County, which is the other key for Davis' success, has not yet begun reporting. But Prentiss County, where Childers netted about 3,500 votes in the last round of balloting, has not yet begun to report, either, so expect these numbers to continue to jump around.
Update [2008-5-13 21:36:54 by Jonathan Singer]: More than half of the vote has reported and Childers' lead is larger than it has been at any other point in the night, over 3,600 votes. It WELL worth remembering, though, that in the last round of balloting here (as well as the election a week and a half ago in Louisiana) the Republicans led for much of the night only to be overtaken by the Democrats when it counted. So stay tuned...
Previous updates below the fold...