When asked whether he was involved in criminal acts with Manafort or breached the law, Gates who was the defendant's longtime business partner said, "Yes," NBC News reported.
During the testimony, Manafort's former business partner said that Manafort directed him to report overseas income as loans to lower his taxable income, Reuters reported. Gates also testified that he stole hundreds of thousands of dollars from Manafort by filing false expense reports.
Richard Gates is considered one of the key witnesses in Manafort's case. He earlier pleaded guilty to charges of conspiracy and lying to the FBI and agreed to cooperate with investigators.