One part saw the resignation of William Ruckelhaus and Elliot Richardson and the firing of Archibald Cox in what came to be known as the "Saturday Night Massacre".  
It was triggered by an event that included CIA agent James McCord. Later, it was revealed that a $25,000 check had been given to Maurice Stans. The chief of staff worked to use the CIA to divert the FBI's focus and John Mitchell was revealed to have controlled a secret fund while working with G. Gordon Liddy. One part saw the resignation of William Ruckelhaus and Elliot Richardson and the firing of Archibald Cox in what came to be known as the "Saturday Night Massacre".  One person involved in it would reveal himself to be Mark Felt, after previously working with Woodward and Bernstein as "Deep Throat". FTP, identify this political scandal involving a hotel break-in that led to the resignation of Richard Nixon.
It was triggered by an event that included CIA agent James McCord.
{Watergate} scandal