Rudy Giuliani addresses the crowd at the Turning Point USA Student Action Summit on Dec. 19, 2019 in Palm Beach, Fla. Saul Martinez/Getty Images hide caption
Trump Ukraine call
House Judiciary Committee Chairman Jerry Nadler, D-N.Y., leaves at the conclusion of a House Democratic Caucus meeting on Capitol Hill in October. Manuel Balce Ceneta/AP hide caption
U.S. Ambassador to the EU Gordon Sondland on Capitol Hill on Oct. 17. Sondland will give much-anticipated public testimony Wednesday in the impeachment inquiry of President Trump. His story has changed since he first testified last month. Pablo Martinez Monsivais/AP hide caption
Gordon Sondland Returns To Impeachment Inquiry As A Key Witness With An Updated Story
President Trump and Ukrainian President Volodymyr Zelenskiy shake hands during a meeting in New York on Sept. 25, on the sidelines of the United Nations General Assembly. Saul Loeb/AFP via Getty Images hide caption
President Trump speaks to reporters upon arrival at the White House in Washington on Sunday. He called on reporters to publicly reveal the name of the whistleblower who set off the impeachment inquiry. Manuel Balce Ceneta/AP hide caption
Whistleblower Offers To Field Written Questions About Call Trump Says Was 'Perfecto'
Former White House adviser on Russia Fiona Hill leaves the Capitol on Monday after testifying before lawmakers as part of the House impeachment inquiry into President Trump. Manuel Balce Ceneta/AP hide caption
Fiona Hill, a former White House adviser on Russia, arrives on Capitol Hill on Monday ahead of her testimony in connection with the House impeachment inquiry into President Trump. Andrew Harnik/AP hide caption
Burisma Group, a Ukrainian energy company, keeps a low profile. This building, which houses the offices of a Burisma subsidiary, is located in a residential part of the country's capital of Kyiv. Lucian Kim/NPR hide caption
Democrats in Congress say their impeachment inquiry into President Trump will likely take weeks, not months, of work. J. Scott Applewhite/AP hide caption
Ukrainian President Volodymyr Zelenskiy smiles after meeting United Nations Secretary-General António Guterres during the 74th Session of the General Assembly on Thursday in New York. Timothy A. Clary/AFP/Getty Images hide caption