Congress and the media deserve some blame for not digging hard enough... but when assigning blame here, surely we ought blame the liars and misleaders more than the lied to and the misled?

Except that the Bush Administration story was on several key points, including the nature of the “winnebagos of mass destruction” a lie, and that the US knew it to be a lie, and that, they were, in fact, associated with a weather balloons used in artillery spotting and had been sold to Iraq by the UK, was reported, in the media, at the time the story was being presented by the Administration.

The media did not fail to dig hard enough. Neither really did Congress. The media reported the truth, Congress and much of the population had the truth in front of them and choose wilfull pretense of ignorance, and the former gave Bush the authority to decide to go to war—sure, there were factual determinations that had to be made first, but the Administration was already known to be lying about the facts to get authority to go to war, so it was predictable they would lie to exercise that authority.

Why would we give congress war powers if not as a specific check against a commander in chief who would otherwise start undesireable wars? It is congress' job to specifically not just go along with what the administration tells them. They have their own investigative powers, and 59 congress members voted against the invasion so clearly it was possible for congress people to question the validity of the administration's argument.

As for the media, accepting the government's narrative without question is the most heinous sin. That is not journalism, that is propaganda. Of course the government is going to massage the truth, just like any other institution. Most people take it as a given that politicians lie. However when the media, which is supposed to have an antagonistic relationship with the government, reaffirms what the government is saying, then it holds substantially more weight. It would be like if a prosecutor claimed the defendant was guilty and the defense attorney agreed.

You don't get any slack for having been lied to when your entire job is to identify lies.

If I tell you that some guy called you fat and you go kick the shit out of him, I'm at way less or even no fault. If I tell you that some guy diddled your kid, sure that's on me.

Plus, regardless of that - Congress had, at the very least, the information available to the public, which includes what the UN was saying, what weapons inspectors were saying etc. So they didn't need to "dig" anywhere.

And later it came out the administration lied extensively about that, including some in-retrospect ridiculous assessments about how long the war would take (what was that quote, doubt it would take 6 months, doubt it would cost much at all).

> No need to invoke tribalism

Oh yes there is, especially because after that complete and utter fiasco of the worst foreign policy decision by the US ever, was there any honest introspection or learning by the administration and/or Republicans in general? Nope, it just was completely ignored.