President-elect Donald Trump has pledged to broker a peace deal in Ukraine, but as he prepares to take office, peace seems as elusive as ever.

Witnesses in the impeachment probe have testified to Giuliani's outsized influence on Ukraine policy, including pressing for an investigation into former Vice President Joe Biden and his son Hunter Biden's work with Burisma. "During my time at the NSC, I received multiple calls from lobbyist Robert Livingston, who told me that Ambassador Yovanovitch should be fired," Croft plans to say. "The only reason given was that the order came at the direction of the President," Croft is expected to say. Neither Croft nor Anderson were on the July 25 phone call when Trump pressed his Ukrainian counterpart to investigate Biden. Many of the witnesses, including Anderson and Croft, are widely respected diplomats who have served in both Republican and Democratic administrations.

WASHINGTON - Amid an impeachment inquiry prompted by a whistleblower's allegation about President Donald Trump's July 25 phone call with Ukrainian President Volodymyr Zelenskiy, House Democrats said Wednesday that they were planning to subpoena the White House on Friday. Democrats have scheduled a Thursday deposition with Kurt Volker, who resigned last week as U.S. special envoy for Ukraine negotiations, and they want to depose State Department officials, including T. Ulrich Brechbuhl, a counselor at the State Department, who listened in on the call. Secretary of State Mike Pompeo told reporters in Rome on Wednesday that he was also on the phone call, and he "won't tolerate folks on Capitol Hill bullying, intimidating State Department employees. Photo by Chip Somodevilla/Getty Images WASHINGTON, DC - OCTOBER 02: Finnish President Sauli Niinisto and U.S. President Donald Trump hold a joint news conference. Democrats said the Trump administration's refusal to cooperate with the impeachment inquiry could be considered an impeachable offense.

WASHINGTON - Amid an impeachment inquiry prompted by a whistleblower's allegation about President Donald Trump's July 25th phone call with Ukrainian President Volodymyr Zelenskiy, House Democrats said Wednesday that they were planning to subpoena the White House on Friday. Democrats have scheduled a Thursday deposition with Kurt Volker, who resigned last week as U.S. special envoy for Ukraine negotiations, and they want to depose State Department officials, including T. Ulrich Brechbuhl, a counselor at the State Department, who listened in on the call. Secretary of State Mike Pompeo told reporters in Rome Wednesday that he was also on the phone call, and he "won't tolerate folks on Capitol Hill bullying, intimidating State Department employees. Photo by Chip Somodevilla/Getty Images WASHINGTON, DC - OCTOBER 02: Finnish President Sauli Niinisto and U.S. President Donald Trump hold a joint news conference. Democrats said the Trump's administration's refusal to cooperate with the impeachment inquiry could be considered an impeachable offense.