Justice Department Inspector General Michael Horowitz has already harshly criticized James Comey in two high-profile investigations, so the watchdog’s impending report on abuse of the Foreign Intelligence Surveillance Act could spell trouble for the former FBI director.

Comey handled the FBI’s criminal investigation into former Secretary of State Hillary Clinton’s illicit private email server and her mishandling of classified information, while simultaneously leading the bureau’s counterintelligence inquiry into alleged ties between the Russian government and Trump’s campaign.