Lance Armstrong Confesses to Doping in Oprah Interview

Justice officials recommend the department join a lawsuit against the disgraced cyclist.
2:55 | 01/15/13

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Transcript for Lance Armstrong Confesses to Doping in Oprah Interview
First, let's get to the big headline. I'm showing it right here. Lance admits to vile betrayal. You'll see a lot of the livestrong bracelets. They're calling the greatest deception in sports history. Just as justice officials are recommending that the department join a federal lawsuit against the disgraced cyclist. Armstrong had a no-holds-barred interview on monday. And neal karlinsky who has covered the twists and turns of the story for years is in seattle. Good morning. Reporter: Elizabeth, good morning. Could it really be all about the money. Sources tell abc news, the federal government is likely to join a whistle-blower lawsuit against armstrong this week, seeking to recoup millions of dollars paid to sponsor his cycling team. It would be the costliest case against lance armstrong by far. And his biggest headache going forward. This morning, sources say the lying is over. After a decade of denials. I have never doped. Reporter: Even lawsuits, and vicious attacks against his detractors. I've never taken performance-enhancing drugs. Reporter: Sources tell abc news, that lance armstrong now admits he really was on more than just his bike. Not only did armstrong admit DOPING HIS WAY TO SEVEN TOUR de France victories in his emotional oprah confession, taped on monday and airing later this week. Sources are telling abc news, armstrong is in talks to possibly repay the millions of dollars the u.S. Postal service paid to sponsor his team. Money the federal government is already considering suing to get back. Betsy and her husband, frankie, were close armstrong friends were years before being attacked by armstrong for refusing to lie. I never thought that this day would come. And it's very hard whas done. But it's not enough. He aided and abetted. He did not do this on his own. Reporter: Even more stunning, sources say armstrong is considering finally coming clean to u.S. Anti-doping authorities. Even naming others involved with beating the drug tests and maintaining the myth. Everything that's been happening in the last week is self-serving. And it's all about salvaging what's left of his brand. Reporter: During a day that included a tearful apology to the staff of his beloved livestrong cancer foundation, a reporter found armstrong out jogging. He was relaxed. At calm. At ease, and ready to speak candidly with oprah winfrey. Reporter: This morning, his victories, his fans, his reputation are all gone. Officials say lance armstrong beat cancer only to lose his way in a ruthless game of win at all costs. What now? Armstrong flew from his home in texas to a house that he's been staying in in hawaii overnight, where he will likely watch this interview play out like the rest of us.

This transcript has been automatically generated and may not be 100% accurate.

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