one of the most well-known infomercial pitchmen in america. Behind bars for failing to pay nearly $40 million in fines to the government. Ken trudeau made the biggest pitch of his life for his... See More
one of the most well-known infomercial pitchmen in america. Behind bars for failing to pay nearly $40 million in fines to the government. Ken trudeau made the biggest pitch of his life for his freedom. But the judge didn't buy it. Paula faris has the story. Reporter: It's the tv pitchman whose misleading claims cost him his business. I can't gain the weight back. Reporter: Tens of millions of dollars and his freedom. This morning, kevin trudeau is being held in this federal facility in chicago, until he can prove he's unable to pay the multimillion fine he owes. The u.S. Government is really scared of me. They're trying to put me in jail. They fine me $37 million. Reporter: In a 2008 civil judgment, the federal trade commission found that his promotions for this best-selling weight loss book, are full of misleading claims. I wrote this book. Reporter: The man known to live large, from his chateau in switzerland, to the bling on his finger, has been trying to convince the court, he's been broke ever since. I don't have $37 million hidden some place. If they can find $37 million, pop the champagne. Good luck. He embarks on an elaborate plan to hide assets, creating companies, largely offshore, in his wife's name. Reporter: Trudeau submitted the documents to the court on monday, proof that he has few assets left. In this october 19th letter to his estranged wife, he implores her to turn over any assets they once schafered. If you have the patek cufflinks, you must immediately turn them over, he writes. Hundred, I am desperately trying to purge myself from being in contempt of court, so I will not be incarcerated. Remember, this is only money. In what may have been the most important pitch of his life tuesday, trudeau begged a judge for his freedom. One pitch he simply couldn't sell. And until the courts believe him, he will remain in jail. For "good morning america," paula faris, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.