WASHINGTON—Weeks before President Trump and Volodymyr Zelensky’s July phone call, U.S. diplomat Kurt Volker told the Ukrainian president he needed to convince Mr. Trump he was willing to investigate corruption and alleged Ukrainian 2016 election interference, according to a person familiar with the former envoy’s recent testimony to Congress. Mr. Volker, then the U.S. special representative for Ukraine negotiations, pulled Mr. Zelensky aside at a conference in Toronto on July 2 to urge him to make clear his commitment to investigating...

Source: Wall Street Journal October 22, 2019 19:06 UTC