The Republican 'maverick' bends in the wind of Tea Party-style politicsWhen does being a maverick turn into a shameless flip-flopper? Pretty much about now, according to many observers of the long and storied political career of former Republican presidential candidate John McCain.Senator McCain, pictured, is now caught in one of the toughest political fights of his life, facing off in a primary fight against the Tea Party-style challenger JD Hayworth. And he is doing it in Arizona, which has just passed a strict anti-illegal immigrant law so controversial the White House is taking it to court.All this means that McCain's...