Among other things, it cites reports provided to the administration by the United Nations, the Central Intelligence Agency (repeatedly), the International Atomic Energy Agency,
The Defense Intelligence Agency, the Department of Energy, the Intelligence and Research Department of the State Department, and the US Air Force, all of which said that there was no evidence that Iraq had nuclear, chemical, or biological weapons or delivery systems, and cautioned the Administration on misstatements it had made. These reports continued right up to the brink of the war, and were ignored by the White House. Bush and Cheney are still equivocating about this, and the Congressional focus seems to be whether or not the intelligence we had was bad. It looks like the only bad thing about it was that it wasn't what Bush wanted to hear.