By MICHAEL RUBINKAM, Associated Press Writer PHILADELPHIA - Don King, the wild-haired boxing promoter, is touring the country with Republican National Committee (news - web sites) chairman Ed Gillespie to tout President Bush (news - web sites)'s re-election. "Only in America," as King often says — and he did at a stop in Philadelphia Wednesday. "People understand that George Walker Bush is the man with the plan to make America better," King, sporting an American flag tie and plenty of diamond-encrusted jewelry, told a group of black business leaders at a downtown jazz club. "Sometimes, just sometimes, it ain't too...