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.
Mueller's team had previously said Manafort lied multiple times, including about his contacts with Trump administration officials.
The lawyers assented to these allegations by special counsel while arguing that, even though Manafort initially misled the government about these facts, they can not show that he was actually "lying" because the events "simply were not at the forefront of Mr. Manafort's mind".
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.
Attorneys for President Trump's former campaign chairman tried to obscure this and other revelations in a document made public Tuesday, but the text beneath the black bars could still be copied and pasted into a new document.
"The defense 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, which was filed on Monday and released by the court on Tuesday.
But Mueller's office said Manafort had lied about at least five subjects, including his interactions with Kilimnik.
The latest allegations further detail how Manafort's work on the campaign intersected with his past global work with Kilimnik.
And those portions revealed nuggets of information about Manafort's ties to Russian national Konstantin Kilimnik, who has been linked to the Kremlin. Manafort reportedly asked Kilimnik to offer the Russian aluminum magnate Oleg Deripaska private briefings on the Trump campaign in exchange for debt forgiveness.
During the 2016 Republican national convention, the Trump campaign came under scrutiny for changing a policy proposal for Ukraine in a way that made it favorable for Russian Federation.
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. 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.
Prosecutors have also accused Manafort of lying about his contacts with Trump administration officials, which defense lawyers deny. The request to use Manafort as an introduction to Trump came while Manafort was under indictment in two federal cases.
Defence lawyers say they don't want a separate hearing before a judge on the lying allegations, but will address them instead during the sentencing process.