A Ukrainian opposition politician who helped uncover off-the-books payments allegedly made to Donald Trump's former campaign chairman Paul Manafort says he provided the information to the FBI but never heard back from the agency.
Serhiy Leshchenko also told The Associated Press on Friday that his attempts to inform Ukrainian officials about the payments ran into roadblocks.
Manafort worked as a consultant to former Ukrainian President Viktor Yanukovych and his Party of Regions. The Russia-friendly Yanukovych was ousted in 2014 in the wake of bloody street protests and fled to Russia.
Leshchenko, a former investigative journalist, said in February he "shared...