Manafort, after being convicted of various bank and tax fraud charges, had agreed last September to cooperate with special counsel Robert Mueller's ongoing investigation into allegations of collusion between Trump's campaign and Russian Federation.
In his rebuttal to the special counsel's claims of dishonesty, Manafort exposed details of the dispute, much of which centers on his relationship with Kilimnik.
They contended the 69-year-old Manafort, facing years in prison, had breached the cooperation agreement that was reached when he pleaded guilty to cheating US tax authorities, violating federal lobbying laws and obstructing justice in connection with his long-time lobbying efforts for deposed Ukrainian leader Viktor Yanukovych in the years before he worked on Trump's campaign. 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.
"It is not surprising at all that Mr Manafort was unable to recall specific details prior to having his recollection refreshed", Manafort's team wrote.
He has been wheelchair bound for months, his lawyers say, because of gout, and has been kept essentially in solitary confinement for his own safety. A week after Mueller's court filing, a Vox report alleged that Manafort's communications may have dealt with him suggesting methods that the administration could use to combat Mueller's investigation in the media. But an unredacted section notes some events occurred while Manafort was managing President Trump's 2016 campaign.
Manafort's attorneys did not respond to a request for comment Tuesday about the filing error, though they corrected it in the court's official record.
Prosecutors say Manafort breached their plea agreement by lying, but defense lawyers argued that any misstatements were simple mistakes made by a man coping with illness, exhaustion and extensive questioning from investigators.
The filing contains new information about Manafort's connections to Konstantin Kilimnik, a Russian-Ukrainian business associate who was indicted a year ago on charges he tampered with potential witnesses.
The sections posted online also stated that Mueller's office believes that Manafort lied to prosecutors about his discussions with Kilimnik about a "Ukrainian peace plan" and a meeting that Manafort had with Kilimnik when they both were in Madrid.
The lawyers for Donald Trump's former campaign chairman were given a midnight deadline by the judge to file the documents. Manafort had told investigators he had no direct or indirect contact with White House officials since Trump's inauguration, but Manafort had been in touch with officials as recently as the spring, according to the special counsel's assertions. Kilimnik and Manafort were charged with obstruction of justice in June for trying to influence witnesses who could testify at Manafort's trial. Kilimnik has denied any ties to Russian intelligence. "This does not constitute outreach by Mr. Manafort to the President", a redacted line in the filing claims, while another redacted sentence says another identified interaction is "hearsay purportedly offered by an undisclosed third party".
The judge in DC federal court who has overseen his case, Amy Berman Jackson, gave him the opportunity to respond before she would hold a hearing about the facts of the situation.
The longtime Republican consultant already faces a possible maximum, 10-year prison sentence in his District of Columbia case under federal guidelines for conspiring to cheat the Internal Revenue Service, violate foreign-lobbying laws and tamper with witnesses.
Federal prosecutors convinced a jury in August 2018 to convict Manafort on eight of 18 bank and tax fraud charges in a trial in NY.