From The Boston Globe:
PHOENIX – US Senator Scott Brown, driving past palm trees and American flags, brought his political star power to Arizona today to stump for the 2008 GOP standard-bearer, John McCain.
McCain is locked in one of his toughest reelection fights of his career, and was hoping Brown could bolster his conservative credentials. McCain’s chief opponent in the Republican primary, former congressman and talk radio personality J.D. Hayworth, has been criticizing McCain as too liberal for Arizona.