The Conyers Report on the 2004 Presidential Election
Introduction by Gore Vidal
Edited by Anita Miller
This fascinating and disturbing book is the official record of testimony taken by the Democratic Members and Staff of the House Judiciary Committee, presided over by Rep. John Conyers of Michigan, the Ranking Member. Originally released in January, 2005 by the Committee and now available in print for the first time.Amendment: Rep. Conyers' blog.
In re some of the discussion in the comments, I've written a number of posts on this topic, particularly just after the election, notably here and here and here. (You'll find other, shorter posts on the subject on the same archive page.) More recently, this post looks at the response to the Edison/Mitofsky evaluation.