This page lists 479 instances of alleged and actual misconduct by legislators in the United States Congress from 1789 to the present.

The database below has been collected from public information about congressional investigations, criminal convictions, censures by and expulsions from Congress, and more, see the sidebar. The list is updated as new information becomes available.

An allegation of misconduct listed on this page does not imply guilt, unless it is followed by an official determiniation of guilt. Conversely, the absence of a determination of guilt does not imply innocence because congressional investigative bodies are political, not judicial.