Americans for Prosperity is taking a page from the Obama campaign playbook and punching back twice as hard after being accused of airing a "misleading" anti-Obamacare ad in Michigan.

The organization is out with a new ad, again taking aim at Rep. Gary Peters, D-Mich., who's seeking the Democratic Senate nomination. Peters' lawyers on Feb. 20 sent letters to Michigan television stations airing the original AFP ad, threatening their licenses if they did not ensure the claims in the ad were backed up.

The new AFP ad again features Julie Boonstra, of Dexter, Mich., a leukemia patient who was forced to switch health insurance policies as a result of Obamacare and faced a relentless wave of media criticism after appearing in the first ad. Senate Majority Leader Harry Reid, D-Nev., referred to her specifically in a Feb. 26 floor speech, saying "horror stories" like Boonstra's were "untrue."

Boonstra addresses those criticisms directly in the new ad, saying: "Because of Obamacare, I am now stuck with a plan that doesn't work for me. My choice was taken away from me.

"I just want Congressman Peters to help me, to listen to me. Instead, he's trying to silence me."