BIG LIESThe Party of the Big Liehttp://www.boston.com/news/nation/washington/articles/2007/05/27/gop_rivals_embrace_unproven_iraq_911_tie/In defending the Iraq war, leading Republican presidential contenders are increasingly echoing words and phrases used by President Bush in the run-up to the war that reinforce the misleading impression that Iraq was responsible for the Sept. 11, 2001, attacks.