A report by the State Department’s inspector general concludes that leadership of a leading department bureau mistreated and harassed staffers, accused them of political disloyalty to the Trump administration, and retaliated against them.

In response to repeated counseling by more senior State officials that he address staff concerns, the report concluded, Kevin Moley, assistant secretary for international affairs, “did not take significant action.”

The report, released Thursday, is a sweeping condemnation of Moley and more specifically of his former senior adviser, Mari Stull. A former lobbyist and consultant for international food and agriculture interests, Stull left the department in January following press reports that, among other things, she had compiled a list of staffers deemed insufficiently loyal to the Trump administration.

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Stull, it said, referred to some employees as “Obama holdovers,” “traitors,” or “disloyal,” and accused some of being part of the “Deep State” and the “swamp” — terms that President Trump has used to refer to federal employees. All of those so accused, the report said, were career staffers and not political appointees.

Some staffers said Moley accused them of “undermining the President’s agenda,” the report said.