Nice little website I accidentally fell upon!!
Congressional Misconduct Database
This page lists 394 instances of misconduct and alleged misconduct by Members of the United States Congress from 1789 to the present and is updated as new information becomes available.
The investigations, settlements, and resignations listed on this page do not imply guilt in the absence of a conviction, guilty plea, etc. We include investigations even if the Member of Congress is exonerated because the investigation and exoneration are themselves important events. Conversely, investigations that end without a guilty determination do not imply innocence.
https://www.govtrack.us/misconduct