Sen. John McCain is amused by critics who think Sarah Palin is irrelevant but continue to attack her anyway.

"I think Sarah Palin has earned herself a very big place in the political scene. I'm proud of her. I am entertained every time I see these people attack her and attack her and attack her. 'She's irrelevant,' but they continue to attack her. I'm so proud of her and the work that she's doing," McCain told NBC's David Gregory Sunday.

This video is from NBC's Meet the Press, broadcast Dec. 6, 2009.

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This story's headline was edited for clarity.