yes, the white house did claim iraq as an imminent threat
The Road to Surfdom has the goods on Administration statements that justified Bush's coveted attack on Iraq as vital to counter the imminent threat allegedly posed by Saddam. Tim dunlop concludes:
[T]here can be little doubt that Saddam was presented as an imminent threat. The case is not just made in specific quotes like those cited above but in the whole tenor of the rhetoric that was presented almost on a daily basis--there was no time to waste; we had to act now; we couldn't afford to wait.
The idea that this is something invented after the fact by anti-war types to make the pro-war side look bad is simply wrong.
Go read the whole thing.