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Well, what I've said is that the war in Iraq will always be clouded by how it began, which was a wrong premise, that there were in fact no weapons of nuclear - weapons of mass destruction.

The Iraq war took priority over domestic disaster prevention.

Iraq continues to be an immense disaster, and the President has no apparent plan for getting our troops out.

The rise of ISIS is a result of - Obama and Clinton making a decision to pull our troops out without preparing Iraq is a colossal mistake.

The intelligence failures with respect to Iraq were massive and have damaged our credibility around the world.

The conduct of President Bush's war of choice has been plagued with incompetent civilian leadership decisions that have cost many lives and rendered the war on and occupation of Iraq a strategic policy disaster for the United States.

I think the whole policy of pre-emptive war is a serious, serious mistake.

I thought then, and I think now, that the invasion of Iraq was unnecessary and unjust. And I think the premises on which it was launched were false.

Iraq is going to go down as one of the greatest blunders in American history.

I hope I'm wrong, but I am afraid that Iraq is going to turn out to be the greatest disaster in American foreign policy - worse than Vietnam, not in the number who died, but in terms of its unintended consequences and its reverberation throughout the region.