Trump Defends Conversation With Ukraine Leader

President calls for Kiev to investigate Biden as whistleblower complaint prompts congressional probe

WASHINGTON—President Trump defended a conversation with his Ukrainian counterpart as “totally appropriate” and reiterated his call for Kiev to investigate his potential 2020 opponent Joe Biden, as lawmakers look into the president’s and his lawyer’s efforts to pressure the Ukrainian government to undertake such a probe.

Mr. Trump declined to say whether in a July conversation he had asked Ukrainian President Volodymyr Zelensky to have his government investigate Mr. Biden, the former vice president and now Democratic presidential candidate. But, Mr. Trump told reporters Friday: “Somebody ought to look into that,” referring to Mr. Biden.

Any probe of Mr. Biden centers on the then-vice president’s efforts to seek the ouster of former Ukrainian prosecutor general Viktor Shokin, who had investigated a private Ukrainian gas company, Burisma Group, of which Mr. Biden’s son, Hunter Biden, was a board member.

Trump lawyer Rudy Giuliani has accused Mr. Biden of acting to protect his son, even though Mr. Shokin had already completed his investigation of Burisma Group before he left office. Mr. Biden has said he sought Mr. Shokin’s ouster because he wasn’t doing enough to investigate corruption.

Yuriy Lutsenko, Ukraine’s current prosecutor general, told Bloomberg News in May he had no evidence of wrongdoing by Mr. Biden or his son.

Mr. Trump, during an event at the White House with Australian Prime Minister Scott Morrison, said he didn’t know the identity of the whistleblower. But he also accused the whistleblower of partisan motivations and said his conversation with Mr. Zelensky “couldn’t have been better.”

Asked whether the whistleblower complaint involved the July call with Mr. Zelensky, the president said: “I really don’t know.”

Michael Atkinson, the Trump-appointed inspector general of the intelligence community, met Thursday morning with the House Intelligence Committee in a closed-session. Mr. Atkinson declined to tell lawmakers the substance of the complaint or if it involves the president, but he did say it involves more than one episode and is based on a series of events, according to multiple people who attended or were briefed on the meeting.