Published: Wednesday, August 25, 2010, 7:35 AM     Updated: Wednesday, August 25, 2010, 7:36 AM Once again opposed awkward competition, Arizona Sen. John McCain prevailed over former Rep. J.D. Hayworth in a state’s Republican initial Tuesday. In what could be his final campaign, a four-time senator dished out million in a foe to improved Hayworth, [...]