Former White House national security aide Fiona Hill, and David Holmes, a U.S. diplomat in Ukraine, right, testify before the House Intelligence Committee on Capitol Hill in Washington, Thursday, Nov. 21, 2019, during a public impeachment hearing of President Donald Trump's efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Manuel Balce Ceneta)David Holmes, a U.S. diplomat in Ukraine, right, watches former White House national security aide Fiona Hill, testify before the House Intelligence Committee on Capitol Hill in Washington, Thursday, Nov. 21, 2019, during a public impeachment hearing of President Donald Trump's efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Manuel Balce Ceneta)
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Former White House national security aide Fiona Hill, and David Holmes, a U.S. diplomat in Ukraine, right, testify before the House Intelligence Committee on Capitol Hill in Washington, Thursday, Nov. 21, 2019, during a public impeachment hearing of President Donald Trump's efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Manuel Balce Ceneta)
