That's not what they said before...
From Cheers and Jeers on Daily Kos:
http://feeds.dailykos.com/~r/dailykos/index/~3/15634388/4782 September 12, 2001-December 11, 2001:
We know from Richard Clarke's testimony and other sources that administration officials, including Bush himself, started asking the counterterrorism chief to find an Iraqi link to 9-11 from the day following the attacks. On December 11, 2001--- right around the time bin Laden began his escape, possibly the very day---Vice President Dick Cheney told FOX News, "If I were Saddam Hussein, I'd be thinking very carefully about the future, and I'd be looking very closely to see what happened to the Taliban in Afghanistan."
October 28-November 10, 2002:
Bush's comments about Saddam Hussein, each from a different speech:
"This is a person who has had contacts with al Qaeda."
"He's got connections with al Qaeda."
"This is a guy who has had connections with these shadowy terrorist networks."
"We know he's got ties with al Qaeda."
"We know that he's had connections with al Qaeda."
"He's had connections with shadowy terrorist networks like al Qaeda."
"We know that he has had contacts with terrorist networks like al Qaeda."
"This is a man who has had contacts with al Qaeda."
"This is a man who has had al Qaeda connections."
"He's had contacts with al Qaeda."
"This is a man who has got connections with al Qaeda."
December 17, 2003:
he administration's attempts to tie Saddam to the terrorist attacks of Sept. 11...worked so well that nearly 70 percent of Americans believed Saddam was "personally involved" in the attacks.
On March 21, two days after announcing the invasion, Bush wrote a letter to congressional leaders in which he said: "The use of armed force against Iraq is consistent with the United States and other countries continuing to take the necessary actions against international terrorists and terrorist organizations, including those nations, organizations, or persons who planned, authorized, committed, or aided the terrorist attacks that occurred on Sept. 11, 2001."
March 19, 2003:
U.S. President George W. Bush sent Congress a formal justification for invading Iraq Wednesday, citing the attacks on the U.S. on Sept. 11, 2001.
September 16, 2003:
Vice President Dick Cheney, anxious to defend the White House foreign policy amid ongoing violence in Iraq, stunned intelligence analysts and even members of his own administration this week by failing to dismiss a widely discredited claim: that Saddam Hussein might have played a role in the Sept. 11 attacks.
June 18, 2004:
President Bush yesterday defended his assertions that there was a relationship between Saddam Hussein's Iraq and Osama bin Laden's al Qaeda, putting him at odds with this week's finding of the bipartisan Sept. 11 commission. "The reason I keep insisting that there was a relationship between Iraq and Saddam and al Qaeda because there was a relationship between Iraq and al Qaeda."
June 29, 2005:
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Bush slammed for Iraq link to 9/11
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August 21, 2006:
Q What did Iraq have to do with that?
THE PRESIDENT: What did Iraq have to do with what?
Q The attack on the World Trade Center.
THE PRESIDENT: Nothing!! <...> Nobody has ever suggested that the attacks of September the 11th were ordered by Iraq.