The former Pentagon official who went public about reports of UFOs has filed a complaint with the agency’s inspector general claiming a coordinated campaign to discredit him for speaking out — including accusing a top official of threatening to tell people he was "crazy," according to documents reviewed by POLITICO.

Lue Elizondo, a career counterintelligence specialist who was assigned in 2008 to work for a Pentagon program that investigated reports of "unmanned aerial phenomenon," filed the 64-page complaint to the independent watchdog on May 3 and has met several times with investigators, according to his legal team.

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