Paul Manafort leaves Federal District Court on Monday in Washington. Special Counsel Robert Mueller has accused Manafort and his business partner Rick Gates of using shell corporations to hide assets and keep from paying taxes. AP FILE - In this Monday, Oct. 30, 2017, file photo, Paul Manafort walks from Federal District Court in Washington. The three nations named in the indictment of former Trump Campaign Chairman Paul Manafort have been known by financial crime experts in the past as locations for money laundering or at risk of being used for money laundering. (AP Photo/Alex Brandon, File)