Both Newt’s campaign (first video below) and a pro-Newt SuperPAC have hit the airwaves in Iowa with positive ads.

Meanwhile, I assume that the massive Romney SuperPAC ad buy will be hitting the airwaves in Iowa at the same time.

There is no question that the negative ads have hurt Newt, who has not even had the money to run positive ads with any frequency. I have to wonder how this will play out in the final week, with the contrast between the relentless attacks on Newt, and the positive message.