Final answer:
The scandal involving a break-in at the Democratic headquarters and President Nixon's cover-up of the incident is known as Watergate.
Step-by-step explanation:
The scandal involving a break-in at the Democratic headquarters and President Nixon's cover-up of the incident is known as Watergate. It occurred in the early 1970s and led to President Nixon's resignation. The break-in and subsequent cover-up were carried out by members of Nixon's administration.
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