(CNN) - Arizona Sen. John McCain – a high-profile supporter of former Massachusetts Gov. Mitt Romney – on Monday called for civility from Romney's rival, former House Speaker Newt Gingrich.
"I can only say that, again, his campaign seems to be getting a little desperate," McCain said on CNN's "The Situation Room with Wolf Blitzer."
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McCain, the GOP presidential nominee in 2008, said he thought the string of presidential debates should cease, and outlined the reason he endorsed and campaigns for Romney.
"But, look, my differences with Speaker Gingrich go back to the pork barrel earmark days when they got the majority. Speaker Gingrich put out a memo: Get earmarks for freshmen so they can get re-elected," McCain said. "I fought against them and I said they were corruption."
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