“We have no evidence that Saddam Hussein was involved with the 11 September attacks.” (George W. Bush, 9/2003)
“We don't know.” (Vice-President Dick Cheney when pressed on whether there was a link between Iraq and 11 September during a CNBC interview, September 2003.)
BBC: Looking back at what the administration said.
“I’ve not seen any indication that would lead me to believe that I could say that.” (Donald Rumsfeld responding at a Pentagon news conference, when he was asked about a poll that indicated nearly 70% of respondents believed the Iraqi leader probably was personally involved.)
“We have never claimed that Saddam Hussein had either direction or control of 9/11.” (Condoleezza Rice, ABC Nightline)
Bush acknowledges al-Qaeda not in Iraq until after we invaded, and says "So what?" YouTube
9/11 Commission finds no collaborative relationship between Iraq and 9/11 Washington Post
Five years after invasion, Joint Forces Command report finds no connection between Iraq and al-Qaeda, and no WMD's. CNN
National Intelligence Director Mike McConnell stated Bush administration manipulated Iraq Intel ‘because they didn’t like the answers.’ Think Progress.