OK, I must have been mistaken that they never mentioned it. I don't think that was the primary reason, though. It was the chemical/biological weapons issue. But he was President under the surge, correct? And leaving caused a power void.
It seems like you're the one who doesn't know anything, because your standard response to anything I post is 'you're stupid'. It seems like you aren't interested in discussion, but in posting memes, which is a shame, because there are plenty of liberals here (teeray and PhillyB, off the top of my head) that are interested in discussion, and can back up their arguments. If my comment is so stupid, prove it. Demonstrate that Iraq was never interested in nuclear development, that Israel didn't destroy their facility, that Hussein never got close to a bomb again, that the chemical weapons program never existed, and that counties were not convinced it existed. Oh wait, you can't.
If you have even a shred of intellectual integrity, you should research the very real Iraqi chemical, biological, and nuclear weapons program. It almost certainly wasn't active in 2003, but in the 90s, it was... and Hussein was very, very good at convincing people it was working.
Iraq was developing atomic bombs... in the late 70s. Israel destroyed their nuclear facility in 1981. Hussein never got close to building a bomb again. The intelligence community didn't accuse them of that, they accused them of building chemical and biological weapons - which they were doing. He was so successful at convincing countries that they had chemical weapons that everyone believed him, and we called his bluff. Maybe if your buddy Barack hadn't decided to leave Iraq, it wouldn't be as big a problem.