MANCHESTER, England -- Former President Bill Clinton sought today to boost Britain's badly divided Labor Party, warning supporters not to let it suffer the same fate as America's defeated Democrats. Delegates at Labor?s annual conference gave a celebrity's welcome to a leader they love far better than President Bush, who is widely despised in the party. Mr. Clinton charmed a packed auditorium with a 40-minute speech in which he lavished praise on Prime Minister Tony Blair and Treasury chief Gordon Brown, Mr. Blair's likely successor. In a reference to the political damage Mr. Blair suffered at home because of his...