Former Ambassador Marie Yovanovitch, Key Figure In Impeachment Trial, Retires

Former U.S. Ambassador to Ukraine Marie Yovanovitch testifies before the House Intelligence Committee on Capitol Hill in Washington, on Nov. 15, 2019.

The career diplomat, who served as ambassador to Ukraine, became a key figure in the impeachment of President Trump, was forced out of her post in May.

(Image credit: Andrew Harnik/AP)