The good news is that Clark has given up on SC.
Just how good this news is for the Edwards campaign can't be overstated. It gives him a clear anti-Kerry shot among white voters in SC.
The bad news is that Clyburn is endorsing Kerry.
This isn't that big of a surprise, but it isn't going to help. The only positive spin is that since Sharpton is connecting among black voters, there are fewer to go around for the white candidates.