Obama’s full speech is here.    What follows is a long excerpt from this October 2, 2002 speech:

Saddam poses no imminent and direct threat to the United States, or to his neighbors, that the Iraqi economy is in shambles, that the Iraqi military a fraction of its former strength, and that in concert with the international community he can be contained until, in the way of all petty dictators, he falls away into the dustbin of history. I know that even a successful war against Iraq will require a US occupation of undetermined length, at undetermined cost, with undetermined consequences. I know that an invasion of Iraq without a clear rationale and without strong international support will only fan the flames of the Middle East, and encourage the worst, rather than best, impulses of the Arab world, and strengthen the recruitment arm of Al Qaeda. I am not opposed to all wars. I’m opposed to dumb wars.

So for those of us who seek a more just and secure world for our children, let us send a clear message to the President today. You want a fight, President Bush? Let’s finish the fight with Bin Laden and Al Qaeda, through effective, coordinated intelligence, and a shutting down of the financial networks that support terrorism, and a homeland security program that involves more than color-coded warnings. You want a fight, President Bush?

Let’s fight to make sure that the UN inspectors can do their work, and that we vigorously enforce a non-proliferation treaty, and that former enemies and current allies like Russia safeguard and ultimately eliminate their stores of nuclear material, and that nations like Pakistan and India never use the terrible weapons already in their possession, and that the arms merchants in our own country stop feeding the countless wars that rage across the globe. You want a fight, President Bush?

Let’s fight to make sure our so-called allies in the Middle East, the Saudis and the Egyptians, stop oppressing their own people, and suppressing dissent, and tolerating corruption and inequality, and mismanaging their economies so that their youth grow up without education, without prospects, without hope, the ready recruits of terrorist cells. You want a fight, President Bush? Let’s fight to wean ourselves off Middle East oil, through an energy policy that doesn’t simply serve the interests of Exxon and Mobil. Those are the battles that we need to fight. Those are the battles that we willingly join. The battles against ignorance and intolerance. Corruption and greed. Poverty and despair.