Ex-Trump associate found guilty on 8 charges

boss’ tax bill, and also acknowledged stealing hundreds of thousands of doll a r s without Mr. Manafort’s knowledge by filing fake expense reports.

Beyond the testimony, prosecutors used emails and other documents to try to prove that Mr. Manafort concealed from the IRS, in offshore accounts, millions of dollars in Ukrainian political consulting fees. Overall, they said, he avoided paying more than $16 million in taxes.

Central to the government’s case were depictions of an opulent lifestyle, including a $15,000 ostrich jacket, luxury suits and elaborate real estate that prosecutors say was funded through offshore wire transfers from shell companies in Cyprus and elsewhere.

U.S. District Judge T.S. Ellis III repeatedly grew impatient with prosecutors as they sought to demonstrate Mr. Manafort’s garish tendencies. The clashes between the judge and the prosecutor became a sideshow of sorts during the weekslong trial, with the judge at one point appearing to acknowledge that he had erroneously scolded them.

After the trial, Judge Ellis complimented lawyers on both sides for “zealous and effective representation.” He also remarked on his surprise at the level of attention the case has received and the criticism he received for his management of the trial.

“We all take brickbats in life,” Judge Ellis said.

The trial in Alexandria, Va., is the first of two for Mr. Manafort. He faces a trial later this year in the District of Columbia on charges of conspiracy against the United States, conspiracy to launder money, making false statements and acting as an unregistered foreign agent for Ukrainian interests. He is also accused of witness tampering in that case.