Manafort, who was pushed into the courtroom in a wheelchair and remained seated for most of the hearing, made an emotional plea ahead of his sentence, thanking the judge for his fairness in the high-profile trial.
He asked the judge, T.S. Ellis, for "compassion", and said "To say that I feel humiliated and ashamed would be a gross understatement". He says he hopes to have an opportunity "to show the world who I know I really am".
The President's personal lawyer Michael Cohen has pleaded guilty to campaign financial violations for paying off Mr Trump's alleged mistresses Stormy Daniels and Karen McDougal. "I ask you to be compassionate".
He will face sentencing on a separate case in Washington DC next week.
It added that "while the government does not take a position as to the specific sentence to be imposed here", it believes Manafort "acted for more than a decade as if he were above the law, and deprived the federal government and various financial institutions of millions of dollars". After pro-Kremlin Ukrainian President Viktor Yanukovych's ouster, prosecutors said, Manafort lied to banks to secure loans and maintain an opulent lifestyle with luxurious homes, designer suits and even a $15,000 ostrich-skin jacket.
"The special counsel's attempt to vilify Mr. Manafort as a lifelong and irredeemable felon is beyond the pale and grossly overstates the facts before this court", Manafort's attorneys said.
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Manafort's was the first indictment Mueller announced in late 2017 and it used the criminal prosecution to ratchet up pressure on him throughout 2018 as they sought his cooperation on matters central to their probe.
"Mr. Manafort's physical, mental, and emotional health, together with his age and his nearly nine-month stay in solitary confinement, weigh in favor of a sentence in this case that does not include a lengthy period of incarceration", they argued.
Former National Security Advisor Michael Flynn pleaded guilty to lying to the Federal Bureau of Investigation about his contacts with Russian officials and is awaiting sentencing.
Prosecutors also believe Manafort still poses a risk of recidivism, noting that he lied to the government and the grand jury as recently as previous year. Another plausible outcome could involve a presidential pardon, which Trump said he has not ruled out.
The sentencing capped a stunning downfall for Manafort, a prominent figure in Republican Party circles for decades who also worked as a consultant to such global figures as former Angolan rebel leader Jonas Savimbi, former Philippine President Ferdinand Marcos and Yanukovych.
The crimes were unrelated to his time serving in the Trump campaign.
"The defendant blames everyone from the special counsel's office to his Ukrainian clients for his own criminal choices", prosecutors wrote in a final court filing earlier this week to the Judge. But the longtime lobbyist was found guilty by a jury in federal court in Virginia of evading taxes and misleading banks, after which he admitted to related conduct in D.C. federal court.
But the judge also rejected Manafort's attorneys claims that the lack of any such evidence undermined the case, saying he had considered that issue at the beginning of the case.