Ukrainian government officials tried to help Hillary Clinton and undermine Trump by publicly questioning his fitness for office. They also disseminated documents implicating a top Trump aide in corruption and suggested they were investigating the matter, only to back away after the election. And they helped Clinton's allies research damaging information on Trump and his advisers, a Politico investigation found.
Ukrainian efforts to sabotage Trump backfire - POLITICO - 01/11/2017
Don’t take this too seriously. Ukraine just wanted their money back from Manafort. It was just 17 million, but it is a lot for a country like Ukraine. Before it got all political remember that Trump fired Manafort.