House Intelligence Committee Chairman Adam Schiff, D-Calif., questions former White House national security aide Fiona Hill, and David Holmes, a U.S. diplomat in Ukraine, to 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. (Matt McClain/Pool via AP)