John Edwards said it's over and sent a signal to the Clinton campaign: John Edwards, a former candidate for the Democratic presidential nomination, cautioned Sunday that Senator Hillary Rodham Clinton “has to be really careful that she’s not damaging our prospects” by staying in the contest That's really wise advice. But, Clinton's spokesman, Howard Wolfson, is still in a fighting mood, apparently. Puffing his chest out on FOX today, Wolfson delivered some classic fifth grade school yard taunts: But Howard Wolfson, a senior Clinton adviser, struck a feisty note on Fox, saying that if Mr. Obama wanted Mrs. Clinton out...