A process that is used to charge, try, and remove public officials for misconduct while in office.

Impeachment is a fundamental constitutional power belonging to Congress. This safeguard against corruption can be initiated against federal officeholders from the lowest cabinet member, all the way up to the president and the chief justice of the U.S. Supreme Court. Besides providing the authority for impeachment, the U.S. Constitution details the methods to be used. The two-stage process begins in the House of Representatives with a public inquiry into allegations. It culminates, if necessary, with a trial in the Senate. State constitutions model impeachment processes for state officials on this approach. At both the federal and state levels, impeachment is rare: From the passage of the Constitution to the mid-1990s, only 50 impeachment proceedings were initiated, and only a third of these went as far as a trial in the Senate. The...