Judge T.S. Ellis III imposed the sentence, capping the only jury trial following indictments stemming from special counsel Robert Mueller's investigation.
"I know it is my conduct that brought me here", Manafort, in a wheelchair, told the judge before sentencing.
Mueller's office has not taken a position on a specific sentence for Manafort, but it has made clear that it believes his crimes are serious and merit punishment. Prosecutors have said the work in Ukraine was on behalf of politicians who were closely aligned with Russian Federation, though Manafort has insisted his work helped those politicians distance themselves from Russian Federation and align with the West. "My life - personally and professionally - is in shambles". "When I was in the State Department, I met with all kinds of people, so you can triangulate and figure out what's happening".
Manafort faces sentencing in a separate case in Washington on 13 March on two conspiracy charges to which he pleaded guilty last September.
The case against Manafort was the first - and only, so far - brought to trial by Justice Department special counsel Robert Mueller as part of his Russian Federation investigation.
"Given the investigation's focus on President Trump's campaign, even a blind person can see that the true target of the special counsel's investigation is President Trump, not defendant, and that defendant's prosecution is part of that larger plan", Ellis wrote in a June 2018 opinion that ultimately allowed Mueller to proceed with the case.
In their response released Tuesday, prosecutors tried to explain to the court why Manafort should not receive a sentence less than commensurate with his crimes, reiterating his criminal conduct and arguing he should receive no credit for pleading guilty in Washington, D.C. Even after his trial and guilty plea, Manafort's legal team had an unusual arrangement with Trump's legal team that gave Trump's team insight into the questions Mueller's team was pursuing.
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Manafort will be sentenced for his additional set of charges on Wednesday in D.C.
Manafort was accused of hiding tens of millions of dollars from the U.S. tax authorities which were paid as consulting fees for the work he did over the years for Russian-backed Ukrainian politicians.
A jury past year convicted Manafort on eight counts, concluding that he hid from the IRS millions of dollars he earned from his work in Ukraine.
Defense lawyers had asked Ellis to sentence Manafort to between 4-1/4 and 5-1/4 years in prison, writing in their sentencing memo that Mueller's "attempt to vilify Mr. Manafort as a lifelong and irredeemable felon is beyond the pale and grossly overstates the facts before this court".
At one court hearing, prosecutor Andrew Weissmann said a meeting between the two men at a cigar bar in Manhattan on August 2, 2016, goes "very much to the heart" of Mueller's investigation, though he provided no details.
But prosecutor Greg Andres argued that those details weren't relevant in the Virginia matter because Manafort chose to fight the Virginia case and because a federal judge in D.C. found that Manafort lied after he had agreed to cooperate with the government. He also suffers from severe anxiety, panic attacks and a constant feeling of claustrophobia, they say.
"I faced that issue at the beginning of the case", Ellis said.
Mueller's team issued a scathing rebuttal, stating that Manafort had breached a plea agreement reached with the government and lied repeatedly to the Federal Bureau of Investigation and the Special Counsel's office.