(CNN) – Mitt Romney's presidential campaign will release positive radio ads in Iowa and New Hampshire Friday, as part of an increase in campaign messaging.
The minute-long spots hail the former Massachusetts governor's economic plan as the "boldest GOP agenda since Reagan in 1980" and are peppered with praise from leading national and Granite State Republicans. Iowa and New Hampshire hold the first two contests on the road to the White House, hosting caucuses on Jan. 3 and a primary on Jan. 10 respectively.
In the ads, South Dakota Sen. John Thune, conservative commentator Ann Coulter, New Hampshire Sen. Kelly Ayotte and former New Hampshire Gov. John Sununu say Romney is the candidate most likely to beat President Barack Obama in the next election and reverse his policies.
"Mitt Romney is the candidate we need to clean up Barack Obama's mess and make sure that he is a one term president," Ayotte says in the New Hampshire commercial.
"I think it's going to be Romney. And I think Romney is the strongest candidate," Coulter says in the Iowa spot. "And I think Republicans want to beat Obama and Romney is the best one to do that."
The radio ads come as Romney's campaign has increased its negative rhetoric against rival Newt Gingrich, who has surged in state-wide and national polls.
Team Romney released a web video Friday attacking the former House speaker over his controversial comments about the Medicare plan proposed by Rep. Paul Ryan of Wisconsin.
The new radio ads use Ryan's words to praise Romney's plan to cut spending.
"Congressman Paul Ryan praised Romney's plan saying 'This is getting us toward a prosperity agenda that will allow the private sector to grow,'" the ad says.