The Law of Impeachment in the United States

When the Fathers were framing the Constitution of the United States they sought at every turn to safeguard the interests of the people and at the same time secure to officials a reasonable degree of independence. This solicitude was especially manifest in the case of judicial officers, whose terms were made to run during good behavior. Impeachment was the method adopted to determine what constituted misbehavior. Chief Justice Marshall early laid down the principle that terms otherwise undefined in the Constitution were used in the sense which was well known and accepted at the time the Constitution was written. Impeachment was adopted and adapted from the English practice. To understand our own law, then, it is necessary to know what the English law of impeachment, the lex et consuetudo parliamenti, was at the time of its adoption and in what way it was modified or changed in being adopted.