In its filing, the defence was trying to rebut allegations that Manafort intentionally lied to special counsel Robert Mueller's team after he had agreed, last September, to co-operate with Mueller's investigation as well as plead guilty to charges of conspiracy against the United States and conspiracy to obstruct justice. A spokesman for Manafort's defense team declined to comment on the incomplete redactions or on Mueller's allegations, but lawyers later filed a corrected version of the document. A new court filing says Manafort is suspected of having shared polling data with a business associate who has links to the Russian intelligence service. Trump has said there was no collusion between his campaign and Moscow.
The filing also says Manafort has been accused of lying to investigators by saying that he did not discuss a Ukrainian peace plan with Kilimnik.
The filing did not indicate whether the polling information involved internal campaign data or when exactly it was provided. Manafort reportedly asked Kilimnik to offer the Russian aluminum magnate Oleg Deripaska private briefings on the Trump campaign in exchange for debt forgiveness.
Tuesday's developments are the latest dramatic turn of events in Manafort's case, more than a year after Mueller first charged him with a series of crimes stemming from his lobbying on behalf of a pro-Russian oligarch and political party in Ukraine.
U.S. District Judge Amy Berman Jackson had given Manafort's lawyers until Monday to make a decision.
The New York Times followed up with more details of the hand-off, reporting that Manafort instructed Kilimnik to provide the information to Deripaska, a billionaire aluminum magnate with close ties to Vladimir Putin.
Another revelation that was meant to be kept under wraps was a meeting between Manafort and Mr. Kilimnik in Madrid. He pleaded guilty past year to conspiracy charges in Washington and faces sentencing in a separate case in Virginia, though none of the charges are directly concerned with the alleged collusion between the Kremlin and the Trump campaign.
Trump demands funding to end border 'crisis' in US TV address
Such an emergency declaration would represent a dramatic escalation of the dispute and would immediately draw legal challenges. Trump called the situation on the southern border as a "humanitarian crisis - a crisis of the heart and a crisis of the soul".
Manafort was convicted in federal court in Virginia in August of bank fraud and tax evasion connected to his work in Ukraine.
Mueller claimed in a November 26 filing that Manafort breached his plea deal and "committed federal crimes by lying to the Federal Bureau of Investigation and the special counsel's office on a variety of subject matters".
Manafort has been in jail since June 2018, after prosecutors accused him of attempting to sway witness' testimony against him while he was under house arrest.
Manafort faces a tentative March 5 sentencing date in his federal case in D.C. If he is found to have breached the deal, he would lose any sentencing credits for acceptance of responsibility, prosecutors said.
Under the agreement with prosecutors in his District case, Manafort also was ordered to forfeit an estimated $15 million he hid from the IRS, but was permitted to keep some property held with relatives.
The longtime lobbyist is set for sentencing February 8 in Virginia before U.S. District Judge T.S. Ellis III of Alexandria, Virginia. He's also suffering from depression and anxiety, it said.
Although Manafort's attorneys could request an evidentiary hearing on the claim he lied to Mr. Mueller's team, they suggested the matter be addressed in a pre-sentencing report compiled by the probation office.