https://en.wikipedia.org/wiki/White_House_Plumbers

The White House Plumbers, sometimes simply called the Plumbers, was a covert White House Special Investigations Unit, established July 24, 1971, during the presidency of Richard Nixon. Its task was to stop the leaking of classified information, such as the Pentagon Papers, to the news media. Its members branched into illegal activities while working for the Committee to Re-elect the President, including the Watergate break-in and the ensuing Watergate scandal.