Former U.S. Ambassador To Ukraine Marie Yovanovitch Testifies At Impeachment Hearing [Getty Images]

WASHINGTON, DC - NOVEMBER 15: Former U.S. Ambassador to Ukraine Marie Yovanovitch is sworn in prior to providing testimony before the House Intelligence Committee in the Longworth House Office Building on Capitol Hill November 15, 2019 in Washington, DC. In the second impeachment hearing held by the committee, House Democrats continue to build a case against U.S. President Donald Trump’s efforts to link U.S. military aid for Ukraine to the nation’s investigation of his political rivals. (Photo by Drew Angerer/Getty Images)

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