This campaign encapsulates the Ministry of Magic's attempts to discredit, slander, and smear both Albus Dumbledore and Harry Potter, as well as anyone perceived or believed to be an ally with them.
This campaign was put in place on 24 June, 1995 — after the Rebirth of Lord Voldemort and ended on 18 June, 1996 — after the Battle of the Department of Mysteries. This campaign was put into place when Minister for Magic Cornelius Fudge denied the Dark Lord's return, a fact that would ruin the thirteen years of peace that the Ministry had worked so hard to build and maintain.