Antitrust enforcers with the Federal Trade Commission have opened a wide-ranging investigation into Microsoft’s business practices, starting off a big legal project that an incoming Trump administration must take up or abandon.

Microsoft is asking the inspector general at the Federal Trade Commission to investigate whether agency management improperly leaked news of its antitrust investigation into the company, and make their findings public.

Microsoft is set to go under the microscope of the nation’s top antitrust watchdog, the Federal Trade Commission, which is launching a sweeping investigation into the tech giant’s practices.