Impeachment proceedings in the United States are rare. Presidential impeachments are even rarer. 

The library now provides access to HeinOnLine’s U.S. Presidential Impeachment Library

This new collection helps researchers understand these rare historical events. Organized by the four affected presidents, it brings together a variety of documents both contemporaneous and asynchronous to each president's impeachment, presenting both a snapshot of the political climate as each impeachment played out and the long view history has taken of each proceeding. The collection includes a curated list of scholarly articles, external links, and a bibliography for further research on this topic. It also includes the Whistleblower Complaint on Ukraine, compiled by Kelly Smith at UC San Diego, which brings together official documents related to the whistleblower complaint and impeachment inquiry of Donald Trump. This collection will continue to grow as new material becomes available, particularly in connection with the current investigation into Donald Trump.