Looking up Iraqi nuclear weapons, I found
this site, which mentions Cheney asserting that Iraq was developing nuclear weapons.
ETA: Following up on the first site I found
this transcript of Cheney's interview on "Meet the Press." Consider, specifically, this statement by Cheney (emphasis added):
We know that based on intelligence that he has been very, very good at hiding these kinds of efforts. He’s had years to get good at it and
we know he has been absolutely devoted to trying to acquire nuclear weapons. And we believe he has, in fact, reconstituted nuclear weapons. I think Mr. ElBaradei frankly is wrong. And I think if you look at the track record of the International Atomic Energy Agency and this kind of issue, especially where Iraq’s concerned, they have consistently underestimated or missed what it was Saddam Hussein was doing. I don’t have any reason to believe they’re any more valid this time than they’ve been in the past.
So, is this enough to convince you that the Bush administration was using the specter of Iraq having nuclear weapons as a rationale for invading Iraq?
ETA #2: Here's another quote from the "Meet the Press" interview" in which Cheney uses the WMD issue as reason to attack Iraq:
MR. RUSSERT: . . . What do you think is the most important rationale for going to war with Iraq?
VICE PRES. CHENEY: Well, I think I’ve just given it, Tim, in terms of the combination of his development and use of chemical weapons, his development of biological weapons, his pursuit of nuclear weapons.