Marie Yovanovitch recalled as ambassador to Ukraine (2019)
Yovanovitch, a career foreign service officer, was recalled from Kyiv in May 2019 after a pressure campaign by then-President Trump's personal lawyer Rudy Giuliani, who accused her of disloyalty. She testified in the House impeachment inquiry in November 2019, describing how she was pushed out on what she called unfounded and false claims.
She retired from the foreign service and became a prominent witness in the first impeachment of Trump.
The case showed how quickly an ambassador can be removed for political reasons and turned the post into a national flashpoint.
Like Guilfoyle's case, Yovanovitch's removal made an ambassador's post the center of a national ethics and political controversy, drawing the State Department's internal processes into public view.