"I don't think it's for me to say" whether Trump committed obstruction, Comey demurred, "but that's a conclusion I'm sure the special counsel will work toward, to try and understand what the intention was there and whether that's an offense".
Trump said he is "100 per cent" willing to testify under oath on Comey meetings and tell the FBI Special Consul Robert Muller that he never asked FBI to stop investigating. Comey said he wanted the information to become public "because I thought that might prompt the appointment of a special counsel" in the probe of Russian meddling in the 2016 election, and he did not share it himself because that could prompt reporters to camp out near his home, hoping to get even more information.
Former FBI director James Comey, center, leaving a closed hearing of the Senate Intelligence Committee on Thursday.
A defiant President Donald Trump on Friday accused former FBI Director James Comey of committing perjury in his blockbuster Senate testimony and said he was willing to share his version of events under oath with the special counsel overseeing the expanding Russian Federation investigation.
President Donald Trump speaks during a news conference with Romanian President Klaus Werner Iohannis in the Rose Garden at the White House, Friday, June 9, 2017, in Washington.
Regarding Comey's assertion that Trump had asked him during a one-on-one dinner in the White House to pledge his loyalty, the president said, "I hardly know the man".
Comey accused the administration of spreading "lies" and bluntly asserted that President Donald Trump had fired him to interfere with an investigation of Russia's ties to the Trump campaign. The president was given until June 23 to comply with the demand.
Trump's private attorney, Marc Kasowitz, seized on Comey's admission that he had orchestrated the public release of the information.
Trump's lawyer Marc Kasowitz has indicated he will file a complaint about Comey to the Justice Department, which oversees the Federal Bureau of Investigation.
President Trump, however, refused to say whether his private conversations with Comey were taped. During his campaign, Trump often said it was time to "drain the swamp" in Washington of corrupt and self-dealing insiders.
Trump made the remarks while responding to questions on Comey's explosive testimony in which he accused the president of trying to stop a probe into the alleged Russian interference in the United States elections past year.
The committee also sent a letter to Mr Comey asking for any notes or memos about the discussions he had with Mr Trump before being abruptly fired last month.
Comey "leaking his own memos to manipulate the system is exactly why people dislike the swamp", said Trump ally Newt Gingrich.
While many of Trump's Republican allies have found Comey's testimony credible, the president has called the man he fired a liar and a "leaker". Trump replied three times, "I didn't say that". "He's a leaker", Trump said.
Comey told the Senate panel he would urge the release of any recording of his conversations with the president.
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.
In the Clinton impeachment case, the House of Representatives dropped an article on obstruction of justice, said Turley, who testified before the House in favor of impeachment.
The president had previewed his attacks against Mr Comey in an early-morning tweet that broke his previous day's silence on his favourite social media megaphone.