It is known as the BONUS ARMY . In the summer of 1932, World War I veterans, families and affiliated groups gathered in Washington DC to demand cash- payment redemption of their service certificates.
The media called them BONUS MARCHERS or BONUS ARMY. It was led by Walter W. Waters, a former sergeant.
At the federal level, Article II of the United States Constitution states in Section 4 that "The President, Vice President, and all civil Officers of the United States shall be removed from Office on Impeachment for, and conviction of, Treason, Bribery, or other High Crimes and Misdemeanors
-From Google
The King opens the meeting of the Estates-General (May 5, 1789) this is all know