For example, Michael Missal, the inspector general at the Veterans Affairs Department, oversaw multiple investigations of how the Biden administration handled the agency’s troubled effort to build a massive electronic health records system for veterans’ medical information. Among other conclusions, the reports showed that veterans had been put at risk as their prescriptions were lost in the system. The project has been paused for months.

Mark Greenblatt, a Trump appointee at the Interior Department who was fired Friday, released a lengthy investigation in 2021 concluding that when the U.S. Park Police led law enforcement officers into a crowd of mostly peaceful protesters outside Lafayette Square during the first Trump administration, they did so as part of a plan made days earlier to build a fence around the park to protect officers — not to facilitate the visit minutes later by the president to a nearby church.

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Among those apparently spared Friday was Joseph V. Cuffari Jr., the embattled inspector general at the Department of Homeland Security. A Trump appointee, Cuffari was found in October by an independent panel of watchdogs to have misled the Senate during his nomination process and committed other misconduct during his five years in office.