TUCSON, Ariz. (AP) - U.S. Sen. John McCain says the race for the Republican nomination for the seat he currently holds should be about fixing the economy, not about political ideology.
At a campaign rally in Tucson on Saturday, McCain enlisted one of the GOP's rising stars - Massachusetts Sen. Scott Brown.
McCain is facing the toughest re-election campaign of his Senate career.
Former Phoenix-area congressman and talk-radio host JD Hayworth has launched a primary challenge from the right. Hayworth says McCain isn't conservative enough for Arizona Republicans and is too willing to work with Democrats.
Brown won his seat in January in a special election to replace the late Sen. Edward M. Kennedy. The recent election gave Republicans the crucial 41st vote needed to defeat Democratic legislation in the Senate.
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