05 MARCH 2010 -- PHOENIX, AZ: US Senator Scott Brown (CQ) works the crowd and takes a photo with Amy DiIorio (CQ) from Scottsdale at Grand Canyon University in Phoenix Friday. McCain is facing a tough primary battle from former Republican Congressman JD Hayworth. McCain has Scott Brown (R-MA) and Sarah Palin campaigning for him. Both men are courting the Tea Party activists but so far the Tea Party has refused to endorse either candidate. PHOTO BY JACK KURTZ