Scott Brown campaigns for McCain in Arizona PHOENIX Facing the toughest re-election battle of his career, John McCain is bringing in the Republican Party's newest rising star in a bid to shore up support among conservative primary voters. Massachusetts Sen. Scott Brown is making his first campaign trip as senator. His visit to Arizona Friday will be a first test of his popularity among Republican activists after he broke with the GOP leadership to side with Democrats in supporting a jobs bill. Scott Brown campaigns for McCain in Arizona - Yahoo! News I guess a genuine conservative like J. D. Hayworth just can't catch a break.