Jack Maskell, Recall of Legislators and the Removal of Members of Congress from Office (2012)
“ An expulsion from the Senate or the House of Representatives is the most severe form of congressional self-discipline. While there are no specific grounds for an expulsion expressed in the Constitution, expulsion actions in both the House and the Senate have generally concerned cases of perceived disloyalty to the United States Government, or the conviction of a criminal statutory offense which involved abuse of one’s official position. ”
