"The defence contests the Government's conclusion and contends that any alleged misstatements, to the extent they occurred at all, were not intentional", Manafort's lawyers said in the filing to US District Judge Amy Berman Jackson in Washington, who is handling one of two cases against Manafort.
Russian Federation has denied meddling in the election.
Defense counsel for Manafort claim their client "did not recall having a conversation" with two Trump administration officials and that his recollection about contacts with Kilimnik is "unsurprising", because "these occurrences happened during a period when Mr. Manafort was managing a USA presidential campaign and had countless meetings, email communications, and other interactions with many different individuals, and traveled frequently".
The defense lawyers say Mueller's team has indicated they will not pursue additional charges against Manafort. The Mueller team accused him in November of breaking that deal by lying to investigators.
And in a third redaction apparently gone wrong, defense lawyers revealed that Manafort may have greenlighted an unnamed third party to drop his name if that person secured a meeting with President Trump. Manafort's lawyers claim their client is confined at times to a wheelchair, suffering from gout, brought on by the stress of his prosecution and incarceration in a Virginia prison. Kilimnik has also already been charged by Mueller with witness tampering.
The information was accidentally revealed in a defense filing and was meant to be redacted.
The defence document acknowledges Manafort conceded he had met with Mr Kilimnik in Madrid only after being told that they had travelled to the city on the same day.
Manafort's lawyers said their client had no reason to misrepresent the truth in his 12 interviews with investigators late previous year.
"Issues and communications related to Ukrainian political events simply were not at the forefront of Mr. Manafort's mind during the period at issue and it is not surprising at all that Mr. Manafort was unable to recall specific details prior to having his recollection refreshed", they wrote.
"The same is true with regard to the Government's allegation that Mr. Manafort lied about sharing polling data with Mr. Kilimnik related to the 2016 presidential campaign", the redacted parts of the document read.
Manafort was among the first Americans charged in Mueller's investigation and has been among the central characters in the case, having led the campaign during the Republican convention and as, U.S intelligence officials say, Russian Federation was working to sway the election in Trump's favor.
Prosecutors said Manafort also lied about the circumstances of a $125,000 wire transfer in 2017.
Manafort's lawyers responded that any such conversation did "not constitute outreach by Mr Manafort to the President" and said the prosecution's second example was "hearsay".
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.
In addition to his ties to Kilimnik, Manafort had for years worked for Oleg Deripaska, a Russian oligarch who was sanctioned by the US Treasury in April for allegedly supporting the Kremlin's "malign activity" around the world.
Media captionDonald Trump: "I feel very badly for Paul Manafort" What's next?
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