The truth is out there.
The report is online now, and although heavily censored, speaks for itself. Most of its conclusions do make the CIA look pretty bad in hindsight.
On the other hand, if the CIA had erred in the other direction, and been wrong, they would not only look bad, but a lot of American civilians might be dead. While the CIA is not blameless, after 9/11 they can't be entirely blamed for choosing to take the worst-case view on fuzzy information.
Donald is moving the goalposts a bit, such as focusing on the phrase "Saddam's links to al Qaeda." The report does mention accurate intelligence about links to other terror organizations.
He also often claims that Saddam was not in violation of U.N. resolutions, when he obviously was.