Prosecutors with special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's office filed a sentencing memo for Paul Manafort Paul John ManafortOur Constitution is under attack by Attorney General William Barr Bannon trial date set in alleged border wall scam Conspicuous by their absence from the Republican Convention MORE, President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's former campaign chairman, under seal on Friday before a midnight deadline.

Judge Amy Berman Jackson confirmed the filing had been submitted under seal, according to CNN and CBS News.

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The special counsel's office didn't immediately return a request for comment from The Hill on Saturday. The memo is expected to provide additional detail on the charges against Manafort.

The special counsel has already recommended that Manafort serve up to 25 years in prison and pay millions of dollars in fines.

"Consistent with the practice the special counsel's office has followed, the government does not take a position with respect to a particular sentence to be imposed," a redacted copy of the memo made public Saturday states, according to CBS.

"Instead, the government sets forth its assessment of the nature of the offenses and offender and the applicable advisory sentencing guidelines and sentencing factors."

Manafort pleaded guilty last year to conspiracy against the United States, conspiracy witness tampering and was found guilty of a slew of other financial crimes related to his work as a lobbyist for pro-Russia political groups in Ukraine.

He was found guilty earlier this month of lying to prosecutors repeatedly about his contacts with an aide alleged to have ties to Russian intelligence, violating his plea agreement and opening him up to the possibility of a much greater sentence.

The memo filed Friday is reportedly likely to detail Manafort's contacts with the aide, Konstantin Kilimnik, as well as their contacts with witnesses following Manafort's arrest in 2017.

Jailed since last year, Manafort is set to be sentenced in two separate trials next month, one in Virginia and one in Washington, D.C.