Bob Graham, co-chair of the 9/11 Congressional Inquiry, when asked should Bush be impeached under the standards used against Clinton, said:
If the standard of impeachment that the Republicans set for Bill Clinton, that a personal, consensual relationship was the basis for impeachment, would not a President who knowlingly deceived the American people about something as important as going to war meet the standard of impeachment? ... Of course the answer was yes... I have no shortage of reasons to believe that the American people have been ill served by President Bush, ranging from the economy for the environment.
The main 11 reasons for impeachment included:
* After he was briefed in August 2001, that al-Qaeda was making preparations consistent with hijackings, the President did not take executive action to alert the Federal Aviation Administration, the Department of Defense, or other agencies that might have used this informaiton to harden commercial avaiation against attack;
* Throughout 2002, the President directed the FBI to restrain and obfustacate the investigation of the foreign government support that some and possibly all the September 11 hijackers received;
...
* The President has engaged in a cover-up, withholding from the American people the evidence that supplies the basis of several of the above charges. He has done so by misclassifying information as national security data. While the information may be embarassing or politically damaging, its revelation would not damage national security.
Intelligence Matters, pp. 230-1