Former U.S. ambassador to Ukraine testifies over House impeachment inquiry

Former U.S. Ambassador to Ukraine Marie Yovanovitch (Front) testifies before the U.S. House Intelligence Committee on Capitol Hill in Washington D.C., the United States, on Nov. 15, 2019. Yovanovitch on Friday testified to the House Intelligence Committee in an ongoing impeachment inquiry into President Donald Trump's dealings with Ukraine. (Xinhua/Liu Jie)