Manafort, 69, pleaded guilty in the special counsel's investigation September 14, 2018, on charges related to political consulting he did in Ukraine.
In the memo, submitted in one of two criminal cases Manafort faces, prosecutors do not yet take a position on how much prison time he should serve or whether to stack the punishment on top of a separate sentence he will soon receive in a Virginia prosecution.
In D.C. the statutory maximum Manafort, 69, faces is 10 years. Mueller's team endorsed a sentence of between 19.5 and 24.5 years in prison in that case.
Mueller is investigating whether anyone in Trump's campaign conspired with Russians who interfered in the 2016 USA elections.
Manafort's conduct after he pleased guilty is pertinent to sentencing.
New York County District Attorney Cyrus Vance Jr.is ready to file an array of tax and other charges against Manafort, according to two people familiar with the matter, something seen as an insurance policy should the president exercise his power to free the former aide.
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Its overall global sales also edged up, but its profit when excluding one-time charges still fell short of Wall Street expectations.
U.S. District Amy Judge Berman Jackson found at a February 13 hearing that Manafort had lied in part to protect Kilimnik, a former Russian military intelligence employee. It must avoid New York's double jeopardy law, which provides protections for defendants even stronger than those guaranteed by the U.S. Constitution's Fifth Amendment. As part of a plea deal in the case, Manafort admitted to one count of conspiracy against the United States and one count of conspiracy to obstruct justice. Beyond his domestic political work, Manafort also had a reputation for repping foreign authoritarians and other unsavory figures. He also confessed that he conspired with Konstantin Kilimnik, a translator whom prosecutors say has ties to Russian intelligence, to tamper with witnesses.
Prosecutors said Manafort engaged in an elaborate scheme to keep tax authorities in the dark about the millions of dollars he made from the Ukraine work, and that he lied to get millions in loans after his consulting income dried up. They met several times during and after the campaign, raising Mueller's suspicions.
In recent weeks, court papers have revealed that Manafort shared polling data related to the Trump campaign with Kilimnik. The U.S. imposed sanctions on Russian Federation after its annexation of Crimea in 2014, and Russian Federation has sought relief from that punishment. The judge this month ruled Manafort had breached the deal.
"His deceit, which is a fundamental component of the crimes of conviction and relevant conduct, extend to tax preparers, bookkeepers, banks, the Treasury Department, the Department of Justice National Security Division, the Federal Bureau of Investigation, the Special Counsel's Office, the grand jury, his own legal counsel, Members of Congress, and members of the executive branch of the United States government", prosecutors said of Manafort.
That effort involved prominent public relations and law firms, and it would have been the primary emphasis of Manafort's trial, had it gone forward.
The verdict in that case raised immediate questions of whether Trump would seek to pardon Manafort. Manafort is due be sentenced in that case on March 8.