In recent weeks, he pleaded guilty to lying to Congress about efforts during the 2016 presidential campaign to get a Trump-branded tower built in Moscow.
Trump has made little secret of his frustration with the swirling probe into Russian election interference and potential misdeeds committed by those in his orbit and is seeking to undermine the legitimacy of Mueller's investigation.
On Saturday morning, Trump responded to the release of the documents on Twitter (in almost all caps, of course), saying, "AFTER TWO YEARS AND MILLIONS OF PAGES OF DOCUMENTS (and a cost of over $30,000,000), NO COLLUSION!"
United States prosecutors have revealed that a Russian offered cooperation to Donald Trump's campaign as early as 2015, declaring that the president's ex-lawyer Michael Cohen had provided "relevant" and "substantial" help to the Russia investigation. Prosecutors in NY, where Cohen pleaded guilty in August in connection with those payments, said the lawyer "acted in coordination and at the direction" of Trump.
"The only thing keeping Donald Trump from being indicted and being charged with a crime, beyond wealth and privilege, is that he occupies the office of the presidency", Rep. Joaquín Castro (D-Texas) told host Ali Velshi on MSNBC Friday night.
Later, press secretary Sarah Huckabee Sanders said in two statements that the Manafort filing "says absolutely nothing about the President" and the Cohen filings "tell us nothing of value that wasn't already known".
Last week, Cohen made a surprise guilty plea to lying to Congress, a move that refocused attention on Trump's ties to Russian Federation during the 2016 campaign. He also provided information about attempts by Russian nationals to reach Trump's campaign, they said.
Mueller said Cohen also shared information about his own contacts "with Russian interests during the campaign and discussions with others in the course of making those contacts".
In late November, prosecutors revealed that Manafort had repeatedly lied to them but did not say about what.
The White House similarly dismissed that filing, arguing it "says absolutely nothing about the President".
"It has been incorrectly reported that Rudy Giuliani and others will not be doing a counter to the Mueller Report".
But Mueller has been inching ever closer to the White House, and early on Friday Trump fired off a feverish volley of tweets against a probe he dubs a "witch hunt", accusing Mueller of "big time conflicts of interest" and alleging the prosecutor coerced false testimony from witnesses.
A heavily redacted court filing said that Manafort's "lies" included untruths about his dealings with Konstantin Kilimnik, a business associate who USA officials suspect is a Russian intelligence operative, and about his contacts with Trump administration officials after striking a plea agreement.
Cohen had been hoping prosecutors would make a similar recommendation in his case.
"Cohen did provide information to law enforcement, including information that assisted the Special Counsel's Office", they said. But the NY prosecutors were unsparing in their descriptions of his conduct, saying he was motivated by "personal greed" and that he "repeatedly used his power and influence for deceptive ends". They said his sentence should reflect a "modest" reduction from the four to five years they said federal guidelines would suggest.
Cohen pleaded guilty to financial crimes in a federal court in NY in August and last week pleaded guilty to lying to Congress in a case brought by Mueller.