PHOENIX - Sen. John McCain is finding out what the Republican presidential nomination is worth this week. Then he plans to buff his foreign policy credentials, remind the nation of his long military history and try to frame the issues for the November election — in three separate tours while his two Democratic opponents continue to struggle for their party's nomination. "Whenever you're the nominee of your party, I think people will want to re-examine the candidate," the senator said before leaving Arizona following a weekend at home. "I'd like to believe that all 300 million Americans know me, but...
