The scope of the cooperation was not immediately clear.
Rudy Giuliani, the former New York City mayor who is now representing Trump in the Russian Federation probe, told Reuters on Friday before the hearing that a guilty plea would not crush Manafort's chances of receiving an eventual presidential pardon.
Mueller, who is primarily examining Russian election interference, has secured guilty pleas and cooperation from several people, including former National Security Adviser Michael Flynn. "It is totally unrelated".
Manafort sat emotionless and spoke quietly in court Friday, muttering answers to the judge's questions regarding the deal.
A juror in the Virginia case said she discounted testimony from Gates but found the documents that prosecutors introduced to be "overwhelming" in favor of conviction. In DC, his seven criminal counts are rewritten as two.
The trial would have been Manafort's second; he was convicted last month by a federal jury in Virginia on eight of 18 counts in a bank and tax fraud case related to money he earned in Ukraine.
By striking an 11th-hour deal with Mueller, Manafort could be putting that potential pardon in jeopardy. Trump's former personal lawyer has separately pleaded guilty in NY.
Manafort was convicted last month on eight counts of fraud, bank fraud and failing to disclose banks accounts.
The agreement doesn't specify what if anything prosecutors hope to receive about Trump, but Manafort could be well-positioned to provide key insight for investigators working to establish whether the campaign coordinated with Russian Federation.
"Once again an investigation has concluded with a plea having nothing to do with President Trump or the Trump campaign", he said.
Trump's lawyer Rudy Giuliani said the president did nothing wrong.
The long-time Washington power player's fight against the special counsel investigation is over not with a bang, but with a plea deal.
The White House says this doesn't have anything to do with the president whatsoever. It could be directly related to the Trump campaign or merely tangential.
At the time of Mr Gates' plea, Manafort issued a statement saying he "had hoped and expected my business colleague would have had the strength to continue the battle to prove our innocence".
The president tweeted "Unlike Michael Cohen, he refused to 'break" - make up stories in order to get a 'deal. He concealed the income through a network of foreign banks and shell companies. Manafort is now only facing charges of conspiracy against the United States and conspiracy to obstruct justice.
The trial would have focused on allegations he acted as an unregistered foreign agent for Ukrainian interests. He also attended a June 2016 meeting at the Trump Tower with a Russian lawyer. And now it's too late, said Trump defender and Harvard law professor Alan Dershowitz. It's entirely up to Mueller and his team based on the value of the information they receive from Manafort.
Over a 40-year career, Manafort redefined and expanded Washington's influence industry domestically and internationally, parlaying successful campaigns into lobbying opportunities.
Prosecutors also gained the cooperation of his longtime associate Rick Gates, who had been indicted alongside him.
One of the potential witnesses against Manafort was Sam Patten, who pleaded guilty on August 31 to failing to register as a Ukrainian agent.
How times have changed since the says when Woodward was instead at odds with President Barack Obama's White House . Trump said the key was showing no hesitancy in denying accusations and instead, be on the attack and push back.
On Thursday afternoon, Cardi B publicly endorsed Nixon, urging fans to go out and vote for her via Instagram. Turnout is usually notoriously low but polling stations open at 6:00 am (1000 GMT) and close at 9:00pm.
That group includes linebacker Anthony Barr , who broke Rodgers' collarbone with a hit early last season. It'll be interesting to see how the Vikings play Rodgers. "We'll give him the whole week to get ready".
The Frenchman joined United from Juventus , four years after the Red Devils had sold him to the Serie A side as a youngster. Andrea Pirlo admitted he would not be surprised to see Paul Pogba leave Manchester United and rejoin Juventus.
The Trump administration is deciding whether to extend penalties to another $200 billion list of Chinese imports. Altogether, the USA tariffs could ultimately hit more than United States dollars 500 billion in Chinese goods.
The right strategy for the Bears there would have been to run it on third down, and if they didn't get it to run it on fourth. Rodgers demonstrated once more than having an otherworldly quarterback is more important than anything else.
Embattled liquor tycoon Vijay Mallya said Wednesday he met the Finance Minister before leaving India. Mallya lasted for 15-20 minutes. "I did not even receive the papers that he was holding in his hand".
USTA president said Williams showed "a great deal of class and sportsmanship", without referencing the feud with the umpire . It took two days for the International Tennis Federation to stick up for Ramos, saying he acted with "integrity".
He later gushed over his wife, Chrissy Teigen , 32, crediting her as his No. 1 supporter after reaching the major milestone. He has won an Oscar for Best Original Song for his song " Glory ", which featured in the 2014 film Selma .
What does seem like a surety, however, is that the upcoming smartphone will be touted as a camera-centric Galaxy device. The other two variants are speculated to get a single-lens selfie camera and dual- and triple-lens cameras on the back.
A large rain cloud passes over a day before the arrival of hurricane Florence in Wilmington, N.C. on September 12, 2018. Officials say Hurricane Florence is likely to make landfall in southeastern North Carolina near the SC border.
Israel hails U.S. decision to shut Palestinian mission
Activist Abdullah Abu Rahmeh said that the move is a message to Israel that "it's our right to build on our land". Israeli Prime Minister Benjamin Netanyahu hailed the USA administration's "clear stance in the matter".
Got $1,100? Apple shows off its most expensive iPhone yet
The bright, multicoloured phone made from aluminium glass and with an edge-to-edge screen, is the smaller newest iPhone. What's new is that Apple filled out the "forehead" and "chin" area with screen, giving you the whopping 6.5 inches.
US to close Palestine mission in Washington
The US has threatened sanctions against the International Criminal Court if it goes ahead with prosecutions against Americans . But Bolton said that if ICC prosecutors attempted to do so, the United States would target the global court's judges.
Del Potro through to final as injured Nadal retires
Defending champion Sloane Stephens could not repeat her dream performance from a year ago , but she gave it her all. Djokovic missed the tournament past year because of an injured right elbow that eventually required surgery.