Dashed White House ambitions, John Kerry has learned, can be humbling. The Massachusetts Democrat is the first failed presidential nominee since George McGovern in 1972 to return to his day job in the Senate, surrounded by White House wannabes. Kerry insists it hasn't bothered him to watch from the sidelines as current and former colleagues - including his 2004 running mate, John Edwards - gallop past in pursuit of the Democratic presidential nomination that was his four years ago. "Life goes on and people get too fixated on those kinds of things," Kerry, 63, told The Associated Press in an...