Ukrainian anti-corruption officials have confirmed that Donald Trump's campaign chairman's name appears in a list of so called "black accounts" made by the country's now-toppled president. Paul Manafort, who is playing an important role in this year's U.S. presidential election, has denied that he received any "off-the-books" payments from the Ukrainian government.
ABC News: Ukrainian Anti-Corruption Agency confirms claims against Trump campaign chair

Paul Manafort, Campaign Manager for Donald Trump, speaks on the phone while touring the floor of the Republican National Convention at the Quicken Loans Arena as final preparations continue July 17, 2016 in Cleveland, Ohio.