Newt Fights Mitt on Negative Ads, Freddie Money

On CNN's "The Situation Room" Tuesday, Gingrich says Romney's Super PAC is "run by his staff, paid for by his friends."

Ex-Speaker also adds the way Boston attacks him on Freddie is "dishonest."

Gingrich: "He knows better because he's a businessman. If we were to ascribe to him the gross revenue of Bain as his income, he would immediately scream foul."

Watch the video above.