The Way of the World: Ron Suskind on How the Bush Admin Deliberately Faked an Iraq-al-Qaeda Connection and Undermined Diplomacy, Democracy in Pakistan
Amazing revelations in this book; Suskind is the real deal. (I'm going by Suskind's interviews: haven't read it yet.)
Will the Democrats act on this information? Don't hold your breath.
More on the book here, including transcripts of interviews with sources, some of whom are engaging in "non-denial denials," as Suskind notes.