WASHINGTON, DC – NOVEMBER 19: Lt. Col. Alexander Vindman, National Security Council Director for European Affairs, walks through the halls of the Longworth House Office Building to the hearing room to testify before the House Intelligence Committee during the second week of impeachment hearings of President Donald Trump on November 19, 2019 on Capitol Hill in Washington, DC. The committee is set to hear testimony during the third day of open hearings in the impeachment inquiry against U.S. President Donald Trump, whom House Democrats say held back U.S. military aid for Ukraine while demanding it investigate his political rivals and the unfounded conspiracy theory that Ukrainians, not Russians, were behind the 2016 computer hacking of the Democratic National Committee. (Photo by Sarah Silbiger/Getty Images)