William Brangham has the story.
"No collusion, no obstruction".
When a reporter asked about Comey, Trump again said he never asked for the Justice Department's Russian Federation probe to be dropped - an act that experts say could constitute an obstruction of justice. "I didn't do it myself for a variety of reasons, but I asked him to because I thought that might prompt the appointment of a special counsel".
The former Federal Bureau of Investigation director accused the President of telling "lies, plain and simple" after he was sacked from the intelligence service last month.
WILLIAM BRANGHAM: He did tell President Trump several times that he wasn't specifically under investigation. "I'm not going to say, 'I want you to pledge allegiance'".
"I am not hinting at anything", Trump said, twice declining to elaborate.
"I'd be glad to tell him exactly what I told you", the president said.
He painted Mr Trump as a chief executive dismissive of the FBI's independence and made clear that he interpreted Mr Trump's request to end an investigation into the former national security adviser as an order coming from the president.
He added: "Creating written records immediately after one-on-one conversations with Mr. Trump was my practice from that point forward".
"I'll tell you about it over a very short period of time", Trump said, referring to the tapes.
QUESTION: When will you tell us about the recordings?
Mr Trump's aides have dodged questions about whether conversations relevant to the Russian Federation investigation have been recorded, and so did the president, in series of teases. "He's a leaker", he said of Comey. But he testified under oath. Asked if he would make that denial under oath, he said, "100%".
Donald Trump has a well-deserved reputation for shameless, pathological mendacity.
KARL: So, if Robert Mueller wanted to speak with you about that you'd be willing to talk to him?
Mr Flynn was himself forced out after misleading the vice-president about conversations with Russia's ambassador before Mr Trump took office. On Friday, the president addressed those claims. I mean think of it. "If he's got evidence of corruption, of obstruction, bring it forward". And that's what we want, are the facts.