Romney and Perry Spar Over Whose Book is Worse Politically

In keeping true to their M.O.'s, Texas Gov. Rick Perry and former Massachusetts Gov. Mitt Romney were back at each other's throats during the Fox News GOP debate Thursday evening. This time, the two presidential rivals sparred over their respective books.

Romney asked where the Rick Perry is who said in his book, "Fed Up!," that the federal government "shouldn't be in the Social Security business."

"You better find that Rick Perry and get him to stop saying that," Romney said.

Perry blasted back, accusing Romney of concealing his position on health care between the hard and paperback editions of his book. Perry claimed that in the hard-cover edition, Romney endorsed expanding the health care program he signed in Massachusetts -- dubbed "Romneycare" -- to the rest of the country.

"Then in your paperback you took that line out, so speaking of not getting it straight in your book, Sir," Perry said.

"It's like badminton."

That's when Romney quipped, "I actually wrote my book."

Yes, no surprise here -- a classic Romney-Perry exchange.

The heated part of their dialogue occurs at approximately the 1:20 mark: