well Bush did talk a little bit.. here is about his “oops my bad” speech:
In a speech before the World Affairs Council of Charlotte, NC, on April 7, 2006, President Bush stated that he fully understood that the intelligence was wrong, and [he was] just as disappointed as everybody else when U.S. troops failed to find weapons of mass destruction in Iraq.
I think it wasn’t that we knew they were there. We were hoping they were there.
A dubious way to justify a war at best. Outright deceit at worst. Hence the discussion.