Robert Mueller to Investigate Paul Manafort Bank Fraud Involvement Bloomberg reported that Mueller's team would be investigating a possible trade off between Manafort and a Chicago banker named Stephen Calk. Reports claim Manafort promised Calk a White House position in exchange for $16 million in home loans for homes in New York City, The Hamptons and Virginia. In August 2016, Calk secured a position in Trump's campaign as member on the Council of Economic Advisers. Manafort received the three loans later that year in December 2016 and in January 2017. On Wednesday, reports confirmed a notice of new charges against Manafort have been sealed by the courts. But it is unclear what those charges exactly are and if they pertain to his indictment in October 2016.