The powers relating to impeachment are an essential check in the hands of the body of the legislature against and upon the encroachments of the executive. The division between the two branches of the legislature, the House and the Senate, assigning to the one the right to accuse and to the other the right to judge, the framers of this Constitution were very astute. They did not make the accusers and the judgers -- and the judges the same person.

, Statement on the Articles of Impeachment to House Judiciary Committee, Jul 25, 1974