Former Trump campaign adviser Roger Stone Roger Jason StoneThe agony of justice Our Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report MORE said that he met with a Russian man during the 2016 campaign who wanted President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE to pay $2 million for damaging information on Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE.

The Washington Post reported Sunday that Stone met with the man in May 2016, in a meeting set up by Trump campaign aide Michael Caputo. The meeting was previously unreported and follows Stone's denials that he had any contact with Russians during the campaign.

Stone told the Post that the man had requested Trump pay $2 million for dirt on Clinton, but that Stone rejected the offer.

“You don’t understand Donald Trump,” Stone said he told the man. “He doesn’t pay for anything.”

ADVERTISEMENT

Special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE is now investigating the meeting, Caputo told the Post.

Both Stone and Caputo, who did not reveal the interaction to congressional investigators, alleged that the man, who called himself Henry Greenberg, was an FBI informant.

The Post reported that records do not indicate that Greenberg was an FBI informant. Documents do show that he has stated that he worked as an informant for the agency in the past, but that he said he stopped working with the FBI after 2013.

Greenberg denied to the Post that he was working on behalf of the FBI during the meeting.

“If you believe that [Greenberg] took time off from his long career as an FBI informant to reach out to us in his spare time, I have a bridge in Brooklyn that I want to sell you,” Caputo told the Post.

Both former campaign aides said they did not recall the meeting during their testimony before the House Intelligence Committee. Caputo said he recalled a phone conversation with Greenberg as he prepped for an interview with special counsel Robert Mueller's team, and discussed it during his questioning.

Stone has previously denied having any contacts with Russians during the 2016 campaign.

He testified before the House Intelligence Committee last year that he has been falsely accused of colluding with Russia during the election.

The Post noted that the meeting means that at least 11 Trump officials or associates have admitted to contacts with Russians during the 2016 campaign or transition.

Mueller has been investigating ties between the Trump campaign and Russia. The president has recently made unsubstantiated claims that the FBI spied on and infiltrated his campaign, and has blasted Mueller's probe as a "witch hunt."

--This report was updated at 01:00 p.m.