And as we come on the air, a powerful greek drama is playing out in america. A former champion, lance armstrong, has begun a kind of apology tour. For more than a decade, he denied he cheated, used... See More
And as we come on the air, a powerful greek drama is playing out in america. A former champion, lance armstrong, has begun a kind of apology tour. For more than a decade, he denied he cheated, used drugs to win. And this morning, the legendary athlete walked in front of some of the people who believed in him most to say I'm sorry. Here's abc's neal karlinsky. Reporter: Today, standing amid a tear-filled room of 100 livestrong staff members, sources tell abc news lance armstrong took responsibility for the damage his actions have caused the livestrong foundation. The cancer foundation he founded. It's not just about the drugs, but the defiance, his categorical insistence that he never cheated, now coming back to haunt him. I have never doped. Reporter: You could see it in his unflynn yinched glare, on tv, to fans, sponsors and cancer survivors. The cynics, and the skeptics, I'm sorry for you. I'm sorry you don't believe in miracles. Reporter: Even under oath -- I've neken drugs. Reporter: Today, sources say armstrong is attempting to apologize by phone to a select few former friends, including ex-teammate floyd landis, who broke his silence to abc news in 2010 and sparked armstrong's downfall. I don't think the team has become paranoid. Reporter: But can a tell-all with oprah repair the enormity of armstrong's disgrace? The man who once hung out with ex-presidents and movie stars is now just scraping for a second chance. I think he's at a point where he realizes he's lost this game and people have been wanting an apology. Reporter: The stakes are huge. Lance armstrong risks hurting himself even more in the hopes of winning sympathy and restoring a lost reputation. Oprah says the interview lasted 2 1/2 hours and that armstrong came, quote, ready. It was reported to be an emotional interview but no word as to whether armstrong confessed. It should be noted that the u.S. Anti-doping agency has an offer to offer him a massive reduction in his lifetime ban if he comes forward and names names. So far, diane, he has not. But it is still breaking news there. And we thank you, neal karlinsky.
This transcript has been automatically generated and may not be 100% accurate.