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 big place in the political scene. I'm proud of her. I am entertained every time I see people attack her. She's irrelevant, but they can't continue to attack her. I'm proud of the work 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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