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

Former U.S. Ambassador to Ukraine Marie Yovanovitch leaves for a break during the impeachment hearing on President Donald Trump 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)