P. Michael McKinley, a seasoned foreign service officer who served as ambassador to Afghanistan, Colombia, Brazil and Peru, has told his colleagues he is resigning, the two officials said.
The move comes amid growing concern among career diplomats over how the administration has handled the impeachment inquiry on Ukraine and how it has treated career civil servants who have been asked to testify before Congress. Earlier this week, Pompeo at the last minute barred the U.S. ambassador to the European Union, Gordon Sondland, from appearing before House lawmakers.
Foreign service officers have come away disheartened by revelations in the Ukraine case, including the recall of Marie Yovanovitch as ambassador to Ukraine months ahead of schedule, after she came under attack from right-wing media. Yovanovitch has been asked to appear before House committees as well but it remains unclear if the State Department will allow her to testify.