Lawyers for President Donald Trump unleashed a blistering attack on former FBI Director James Comey in a confidential memo last year to the special counsel, casting him as "Machiavellian," dishonest, and "unbounded by law and regulation" as they sought to undermine the credibility of a law enforcement leader they see as a critical witness against the president. The letter, obtained by the AP, provides a window into the formation of a legal strategy currently used by Trump's lawyers as they seek to pit the president's word against that of the former FBI director. The June 27, 2017, letter was written by Marc Kasowitz, then the president's lead lawyer, as special counsel Robert began investigating whether Trump's firing of Comey was an attempt to stymie an FBI investigation into the Trump campaign's ties to Russia. Among the highlights: