John Feeley announced his resignation in a letter to the State Department.
"As a junior foreign service officer, I signed an oath to serve faithfully the president and his administration in an apolitical fashion, even when I might not agree with certain policies. My instructors made clear that if I believed I could not do that, I would be honour bound to resign. That time has come", according to an excerpt of the letter obtained by Reuters.
However, the State Department, in a statement, said that Feeley retired for "personal reasons, as of 9 March this year".
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