First, the president's apology on health care. Saying he shoulders the responsibility for its failures. Abc's jonathan karl live in washington for us this morning with the latest on all this. Good... See More
First, the president's apology on health care. Saying he shoulders the responsibility for its failures. Abc's jonathan karl live in washington for us this morning with the latest on all this. Good morning, jon. Reporter: Good morning, robin. It is president obama like we have never seen him before, bluntly acknowledging the failures of his health care rollout. And admitting he didn't quite know what caused it to go so wrong. A deflated president obama is taking blame for the botched rollout of his health care law, declaring repeatedly, it's on me. I do make apologies for not having executed better. That's on me. That's something I deeply regret. We did fumble the ball on it. I feel deeply responsible. Reporter: He conceded that he has not kept his promise, that anybody who wanted to keep their health insurance, would be able to. I completely get how upsetting this can be for a lot of americans. Particularly after assurances they heard from me that, if they had a plan they liked, they could keep it. Reporter: He vowed to change the rule to fix that. Those americans who have had their insurances policies canceled, he said he will allow insurance companies to offer the old policies to them for one more year. It's not clear the fix will work, though. It is up to state insurance commissioners to implement the change. And already one state, washington, has declared the president's fix is unworkable. The president's most heartfelt mea culpa, went to fellow democrats, who have been burned politically, by the problems plaguing the affordable care act. I feel deeply responsible for making it harder for them, rather than easier for them. Reporter: We now know that even before the website launched, it had failed internal tests, showing it was just not ready. But the president said nobody told him that. Had I been informed, i wouldn't be going out saying, boy, this is going to be great. Reporter: There's more at stake here for the president than just health care. He acknowledged that he had to win back his credibility. But the first and most important step in doing that, is convincing the american people, including some of his closest political allies, that he can now get the health care law right. George? That's the big question. Jon karl, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.