国际英语资讯:Spotlight: U.S. ambassador testifies Trump directed diplomats to work with his lawyer on Ukr_时事

国际英语资讯:Spotlight: U.S. ambassador testifies Trump directed diplomats to work with his lawyer on Ukr

However, in his testimony, Sondland said he once asked Trump about what he wanted from Ukraine, and the president responded, "Nothing. There is no quid pro quo."

The ambassador also said he didn't understand until months later that Giuliani was working to push Ukraine to investigate Biden and his son Hunter Biden.

Fiona Hill, former National Security Council Russia adviser, told House committees earlier this week that she and then-National Security Adviser John Bolton were alarmed by Sondland's mention of investigations in a July meeting with senior Ukrainian officials, according to a Wall Street Journal report.

On Tuesday, Vice President Mike Pence declined to submit documents related to the Trump administration's dealings with Ukraine as requested by a congress request.

In a letter to the House of Representatives, Matthew Morgan, the vice president's counsel, repeated the Trump administration's view that the ongoing impeachment inquiry led by House Democrats is "unfair" and lacks "due process," claiming that Pence's office will cooperate on the probe only when it is conducted "in a manner consistent with well-established bipartisan constitutional protections and a respect for the separation of powers."

Also on Tuesday, Giuliani refused to comply with Congress' demand as well.

House Speaker Nancy Pelosi announced the initiation of a formal impeachment inquiry into Trump on Sept. 24 over the president's conduct during a controversial phone call with his Ukrainian counterpart on July 25.