MOSCOW — Ukraine’s president, Volodymyr Zelensky, fired his chief of staff on Feb. 11 in a personnel shake-up affecting central figures on the Ukrainian side of the events leading to the impeachment trial of President Trump.
Ukraine-U.S. Relations
New York Times: Ukrainian political shake-up involves figures in US impeachment
Andriy Yermak, one of President Volodymyr Zelensky's key aides, pays a working visit to the Transcarpathian region in May, 2019. Yermak has become one of Zelensky's main advisers and negotiators.
