An important piece of the puzzle (for those who still need help coming to grips with the obvious) is this article from Murray Waas in the National Journal: Key Bush Intelligence Briefing Kept From Hill Panel.
Ten days after the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon, President Bush was told in a highly classified briefing that the U.S. intelligence community had no evidence linking the Iraqi regime of Saddam Hussein to the attacks and that there was scant credible evidence that Iraq had any significant collaborative ties with Al Qaeda, according to government records and current and former officials with firsthand knowledge of the matter.
The administration has refused to provide the Sept. 21 President’s Daily Brief, even on a classified basis, and won’t say anything more about it other than to acknowledge that it exists.
The information was provided to Bush on September 21, 2001 during the “President’s Daily Brief,” a 30- to 45-minute early-morning national security briefing.
The highly classified CIA assessment was distributed to President Bush, Vice President Cheney, the president’s national security adviser and deputy national security adviser, the secretaries and undersecretaries of State and Defense, and various other senior Bush administration policy makers, according to government records.
The Senate Intelligence Committee has asked the White House for the CIA assessment, the PDB of September 21, 2001, and dozens of other PDBs as part of the committee’s ongoing investigation into whether the Bush administration misrepresented intelligence information in the run-up to war with Iraq. The Bush administration has refused to turn over these documents.
Indeed, the existence of the September 21 PDB was not disclosed to the Intelligence Committee until the summer of 2004, according to congressional sources. Both Republicans and Democrats requested then that it be turned over. The administration has refused to provide it, even on a classified basis, and won’t say anything more about it other than to acknowledge that it exists.
Hm. So, are we still clinging to that “everyone had access to the same intelligence Bush did, and agreed that we needed to go to war with Saddam” storyline?