Trump spokeswoman Sarah Huckabee Sanders said Monday afternoon that Trump wanted a "thorough" exposition of the facts, and that he would not invoke executive privilege.
White House officials had weighed trying to block Mr Comey by arguing that his discussions with the president pertained to national security and that there was an expectation of privacy.
The decision to break into regularly scheduled programming for a Congressional hearing is unusual for broadcasters, indicating the incredibly high level of public interest in what Comey may or may not say regarding his interactions with President Donald Trump. In advance of that testimony, the Senate Intelligence Committee ought to review the bombshell video of Trump threatening to fire Comey weeks before he made good on the threat.
Comey will appear before the Senate intelligence committee on Thursday, with lawmakers seeking answers as to whether he believes the President sought to obstruct his Russian Federation probe or demanded his loyalty before he fired Comey. Trump's argument in favor of privilege also may be overcome because the investigation is focused on corruption and possible obstruction of justice.
The investigations began after US intelligence agencies concluded Russia hacked Democratic National Committee computer servers previous year with the intent of inflicting damage on the campaign of Democratic Party candidate Hillary Clinton, who political analysts say, Russian President Vladimir Putin despised.
But Trump's team said he'd decided against it.
"James Comey better hope that there are no "tapes" of our conversations before he starts leaking to the press", he tweeted in May.
Trump's decision to fire Comey led the Justice Department to appoint special counsel - former Federal Bureau of Investigation director Robert Mueller - to look into allegations of collusion.
"We need to hear directly from Mr. Comey on these important issues", Collins told "Face the Nation".
Russian President Vladimir Putin says claims about Russian involvement in US elections are untrue, and says the United States actively interferes with elections in other countries.
CBS News previously reported that Comey kept memos after meeting with the president, and those memos reportedly detailed the president asking Comey for his loyalty and to drop the investigation into Michael Flynn. But, you know, I have confidence in him.
USA intelligence agencies have concluded that Russian Federation meddled in the presidential election.
"I think the terror threat is real", he responded.
A member of the Senate intelligence committee says "we've seen no smoking gun at this point" regarding collusion between the Trump campaign and the Russian government during the 2016 USA presidential election.