The Watergate break-in marked the start of major investigation under Graham.
On June 17, 1972, the infamous Watergate break-in occurred. Under Katharine Graham's leadership, The Washington Post's subsequent investigative reporting, driven by her support, revealed the scandal that led to the eventual resignation of President Nixon. This period defined The Post’s—and Graham’s—reputation in investigative journalism, emphasizing the essential watchdog role of the press.