Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper testifies before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Under Secretary of State for Political Affairs David Hale (C) and Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper attend a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

People watch from the public viewing gallery as U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper attends a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper attends a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale attend a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

U.S. Representative Jim Jordan (R-OH) yawns during testimony by U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

U.S. Representative Jim Jordan (R-OH) listens during testimony by U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

U.S. House Intelligence Committee Chairman Adam Schiff (D-CA), flanked by ranking member Representative Devin Nunes (R-CA), presides over testimony from U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale during a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

U.S. Representative Jim Jordan (R-OH) listens during testimony by U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale are sworn in to testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Erin Scott 

Chairman Adam Schiff (D-CA) listens to Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper testify before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale are sworn in to testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

U.S. Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale are sworn in to testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S. November 20, 2019. REUTERS/Jonathan Ernst/Pool 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper testifies before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale testify before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale take the oath before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale take the oath before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale take the oath before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale take the oath before a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper takes her seat at a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper arrives at a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale take their seats at a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper arrives at a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Yara Nardi 

Deputy Assistant Secretary of Defense for Russian, Ukrainian, and Eurasian Affairs Laura Cooper and Under Secretary of State for Political Affairs David Hale attend a House Intelligence Committee impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 20, 2019. REUTERS/Loren Elliott 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs and William Taylor, the top U.S. diplomat in Ukraine, testify in a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs, testifies in a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs, testifies in a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs, testifies in a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

U.S. House Intelligence Committee Chairman Adam Schiff (D-CA) and ranking member Rep. Devin Nunes (R-CA) listen as Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

U.S. Representative Will Hurd (R-TX) questions Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, as they testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

U.S. House Intelligence Committee ranking member Devin Nunes (R-CA), Republican counsel Steve Castor and Representative Jim Jordan (D-OH) confer as Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

U.S. House Intelligence Committee Chairman Adam Schiff (D-CA), flanked by ranking member Representative Devin Nunes (R-CA) and Republican counsel Steve Castor, delivers remarks after Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, and Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; are sworn in at at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts/Pool 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, and Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine;are sworn in at at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts/Pool 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, and Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine;are sworn in at at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts/Pool 

Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testify before a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs is sworn in to testify to a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testifies at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts 

Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine; and George Kent, deputy assistant secretary of state for European and Eurasian Affairs, take their seats at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs appears alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs appears alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs is sworn in to testify to a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, walks from his seat during break in a House Intelligence Committee hearing of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, testifies at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs arrives alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs appears alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs listens as Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, testifies during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs appears alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs listens to William Taylor, the top U.S. diplomat in Ukraine, testify during a House Intelligence Committee public hearing in the impeachment inquiry against U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs appears alongside Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine, during a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs is sworn in to testify to a House Intelligence Committee impeachment inquiry hearing into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs, and Ambassador Bill Taylor, charge d'affaires at the U.S. embassy in Ukraine arrive to testify at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs listens to William Taylor, the top U.S. diplomat in Ukraine, testify during a House Intelligence Committee public hearing in the impeachment inquiry against U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs listens to William Taylor, the top U.S. diplomat in Ukraine, testify during a House Intelligence Committee public hearing in the impeachment inquiry against U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Erin Scott 

George Kent, deputy assistant secretary of state for European and Eurasian Affairs testifies at a House Intelligence Committee hearing as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Jonathan Ernst 

George Kent, the deputy assistant secretary of state for European and Eurasian affairs and William Taylor, the top U.S. diplomat in Ukraine, are sworn in during a House Intelligence Committee public hearing in the impeachment inquiry against U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 13, 2019. REUTERS/Joshua Roberts