The committee then canceled the meeting with Cohen, upset that his remarks, which reiterated what he had said in his letter to Congress in August, had been leaked to the press.
Mueller has already shown he has evidence that the Trump campaign and Trump's family entertained offers of dirt on Clinton from Russian Federation.
Cohen said in court that in 2017, he submitted a written statement to Congress saying all efforts relating to the real estate project in Moscow had ceased by January 2016.
Meanwhile, Manafort's lawyers have been briefing Mr Trump's attorneys in recent months on what their client has told investigators, an unusual arrangement for a government co-operator and one that raises the prospect that Manafort could be angling for a pardon.
Michael Cohen may be charged with fraud over US$20 million in loans.
"It's called flipping and it nearly should be illegal", Trump said. Trump Organisation spokeswoman Amanda Miller and chief legal officer Alan Garten didn't immediately respond to messages seeking comment. Mueller is investigating Russia's interference in the 2016 election, whether anyone close to Trump colluded in it and whether the president has sought to obstruct justice.
Trump last week provided written answers to about two dozen questions posed by Mueller about his own actions and recollections of the campaign as he transformed from his life as a NY real estate mogul to that of a first-time candidate for public office.
Until now, Cohen had been operating without a formal cooperation deal.
Cohen entered the plea in a NY federal court, according to CNN.
Both men have been heavily critical of the investigation, and Corsi this week said he had rejected a plea offer from Mueller's team.
Cohen said he downplayed his interactions with Russian Federation about the potential project and made false statements about the negotiations, according to the report.
I assume we will discuss the rejected proposal to build a Trump property in Moscow that was terminated in January of 2016; which occurred before the Iowa caucus and months before the very first primary. Trump has issued repeated denials. Mueller's office alleges that Corsi lied to investigators when he told them that in 2016, he never acted as an intermediary between WikiLeaks and Roger Stone.
Flanked by his lawyers, Cohen admitted making false statements about the project in 2017 to Senate and House intelligence committees, which at the time were investigating possible connections between the Trump campaign and Russian Federation.
"Individual 1" is, as the document points out, who Cohen worked for at a Manhattan-based real estate company. Cohen also pleaded guilty to one count of making false statements in violation of federal law as a result of the $130K he wired to Stormy Daniels as hush money.
Cohen worked on the deal with Felix Sater, a Russian-born developer and United States citizen, who served as a deal broker on the project. "I have no deals that could happen in Russian Federation, because we've stayed away".
Trump was emphatic that Cohen was "lying", but it is unclear what he believes Cohen is lying about. Trump ultimately didn't make the trip.
Mr Trump has called it a witch hunt.
Trump lambasted Cohen following the plea deal.