Des Moines, Iowa (CNN) - It is not just the airwaves here that are filled with attacks on Newt Gingrich. Mailboxes are also filled with harsh fliers taking aim at the former House speaker on the same range of issues as the barrage of campaign commercials.
One mailer from Restore Our Future, the super political action committee that is supporting Mitt Romney, says "Gingrich is the candidate Obama knows he can beat" and then lists such issues as Gingrich's $1.6 million consulting contract with the mortgage giant Freddie Mac, his ethical problems while he was the top Republican in the House of Representatives and his immigration plan that would move some of the nation's illegal immigrants towards legalization.
While stating "Don't give Obama an easy road to victory" at the bottom in bold letters, the flier aims to reinforce concerns about Gingrich by asking: "Who is the consistent conservative who can actually defeat President Obama. It is not Newt Gingrich."
Another mailer shows a picture of President Obama with a headline: "Newt Wins Iowa." And then the leaflet says: "It's What He Wants. But, Is It Really What We Want?"
Rick Perry's campaign also has sent out a flier going after Gingrich and Romney questioning their anti-abortion commitment, pointing out Gingrich's previous support for mandating individuals to get health care and how it says Massachusetts' health care plan provided the basis for President Obama's plan. Also it hits both men as profiting off "the system": Gingrich with his Freddie Mac contract and Romney's tenure as of head of Bain Capital leading to personal financial rewards with the creation of new companies but overseeing bankruptcies of companies that led to layoffs.
At a campaign stop Monday in Davenport Gingrich, who conceded these attacks are having an impact on his bid for the nomination, said he was "very disappointed" that other campaigns were putting out "negative junk." He vowed to keep running a positive campaign, but he also knows he doesn't have the money to go on the air dollar for dollar to rebut these charges. He said he will start to hold daily tele-town halls to allow voters in the state to ask him questions about the charges they are seeing and during a bus tour beginning next week throughout Iowa he said he will "answer any question based on false advertising."