Rep. Devin Nunes, R-Calif., right, the ranking member of the House Intelligence Committee, joined by Chairman Adam Schiff, D-Calif., left, makes an opening statement as the panel prepares to listen to former White House national security aide Fiona Hill, and David Holmes, a U.S. diplomat in Ukraine, 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. (Andrew Harrer/Pool Photo via AP)