Republican presidential candidate Newt Gingrich says that anyone that uses direct quotes from his Sunday interview about Rep. Paul Ryan's (R-WI) plan to dismantle Medicare is lying.

“I don’t think right-wing social engineering is any more desirable than left-wing social engineering,” Gingrich had told NBC's David Gregory Sunday. “I don’t think imposing radical change from the right or the left is a very good way for free society to operate."

Now the Georgia Republican is worried that opponents might use those words against him or the Republican Party.

"Any ad which quotes what I said Sunday is a falsehood," he told Fox News' Greta Van Susteren Tuesday.

Watch this video from Fox News' On the Record with Greta Van Susteren, broadcast May 17, 2011.

h/t: Mediaite