Sen. John McCainJohn Sidney McCainSenate's defense authorization would set cyber doctrine Senate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions MORE (R-Ariz.) said he wasn't picking sides between "maverick" and "partisan" in response to his primary fight against former Rep. J.D. Hayworth.

When asked on "Fox News Sunday" whether he'd gone from his maverick stance toward a position further on the right, McCain said, "Now that I'm fighting against this administration... then I'm a partisan. But I'm a fighter and that's what I am."

"...I prefer 'great American' myself," the 2008 presidential candidate quipped.

McCain said he passed the "litmus test" of being a true conservative over Hayworth because of his opposition to earmarks and pork-barrel spending.

"I enjoy the race, I love a campaign and I'm confident of victory," he said.

McCain said while the anger against incumbents expressed at Tea Parties and the like was a serious reason for Washington to be concerned, he didn't believe that anger would affect his re-election effort.

"No, I don't worry about it," he said. "I know I can outcampaign anybody."