Dutch attorney Alexander Van der Zwaan was ordered Tuesday to serve 30 days in jail and pay a $20,000 fine in the first sentencing flowing from special counsel Robert Mueller's Russian Federation investigation.
Manafort is expected to be tried in July in the first of two cases related Mueller's investigation.
Since his return in December, Schwartz said, van der Zwaan has been walled up in a residential hotel in Washington and unable to return to London, where his wife is undergoing a hard first pregnancy.
Alex van der Zwaan is a lawyer who has worked for the major global firm Skadden Arps, where he was commissioned to work for pro-Russia clients in Ukraine and Russian Federation.
The existence and content of Rosenstein's memo, which was sent to Mueller on May 17, 2017, has not been previously reported, and its revelation appears to significantly hamper Manafort's defense strategy in the Russian Federation investigation.
Ms Tymoshenko, a former Ukrainian prime minister, was jailed in 2011 over a gas deal with Russian Federation, in charges she said were politically motivated.
He acknowledged what he did "was wrong" shortly before Judge Amy Berman Jackson handed down her sentence.More news: Oil prices fall as U.S. trade dispute with China looms
"It is unusual conduct to make a false statement, and then immediately provide proof of a false statement", Schwartz said, saying for if it were another defendant those tapes "could have found their way to the bottom of the Thames" River in London.
Schwartz stressed that his client had made the effort to return to the U.S.to "correct the record" after he lied to the special counsel's office, though prosecutors took issue with the characterization, noting that van der Zwaan was under a grand jury subpoena at the time.
Van der Zwaan and Gates are two of the four men who have pleaded guilty to charges brought by Mueller. According to court filings, Manafort and Gates' work included lobbying Congress about the Tymoshenko report, which had been commissioned by the Ukrainian government.
Van der Zwann had faced between zero and six months in prison under sentencing guidelines.
During this same time period, Manafort and Gates were working for Ukrainian President Viktor Yanukovych - a Kremlin-backed leader with dubious democratic credentials. The couple is expecting their first child in August after a "difficult" pregnancy, a factor his defense argued in requestion leniency from the court. According to the indictment, Federal Bureau of Investigation agents personally questioned van der Zwaan in November 2017 about his communications with Gates and an unidentified Person A. Manafort and Gates's job was to run cover for this clearly undemocratic prosecution.