Is Mitt Romney a liar? Newt Gingrich thinks so.
In an interview with CBS News, the former House Speaker was asked if he believed Romney to be a liar. "Yes," Gingrich replied... frankly.
"Well, you seem shocked by it. Yes, what else can you say?" he added. "This is a man whose staff created the PAC, his millionaire friends fund the PAC, he pretends he has nothing to do with the PAC - it's baloney. He's not telling the American people the truth."
Gingrich was referring to an onslaught of negative ads he's seen against him in Iowa from Romney-friendly PAC Restoring our Future.
Watch Gingrich give Romney a verbal smack around: