Some of his speech earlier today:

Some observers look at the job ahead and adopt a self-defeating pessimism. It’s not justified. With every random bombing and every funeral of a child, it becomes more clear that the extremists are not patriots or resistance fighters — they are murderers at war with the Iraqi people, themselves. In contrast, the elected leaders of Iraq are proving to be strong and steadfast. By any standard or precedent of history, Iraq has made incredible political progress — from tyranny to liberation, to national elections, to the ratification of a constitution — in the space of two and a half years. (Applause.)
With our help, the Iraqi military is gaining new capabilities and new confidence with every passing month. At the time of our Fallujah operations nearly a year ago, there were only a few Iraqi army battalions in combat. Today there are nearly 90 Iraqi army battalions fighting the terrorists alongside our forces. General David Petraeus said, “Iraqis are in the fight. They’re fighting and dying for their country, and they’re fighting increasingly well.” The progress isn’t easy, but it is steady. And no fair-minded person should ignore, deny, or dismiss the achievements of the Iraqi people.
Some observers question the durability of democracy in Iraq. They underestimate the power and appeal of freedom. We’ve heard it suggested Iraq’s democracy must be on shaky ground because Iraqis are arguing with each other. (Laughter.) That’s the essence of democracy. (Laughter.) You make your case; you debate those who disagree with you; you build consensus by persuasion; and you answer to the will of the people.
We’ve heard it said that the Shia and Sunnis and Kurds of Iraq are too divided to form a lasting democracy. In fact, democratic federalism is the best hope for unifying a diverse population, because a federal constitutional system respects the rights and religious traditions of all citizens, while giving all minorities, including the Sunnis, a stake and a voice in the future of their country.
It’s true that the seeds of freedom have only recently been planted in Iraq, but democracy, when it grows, is not a fragile flower, it’s a healthy, sturdy tree. As Americans, we believe that people everywhere prefer freedom to slavery, and that liberty, once chosen, improves the lives of all. And so we’re confident; as our coalition and the Iraqi people each do their part, Iraqi democracy will succeed. (Applause.)
Some observers also claim that America would be better off by cutting our losses and leaving Iraq now. This is a dangerous illusion, refuted by a simple question: Would the United States and other free nations be more safe, or less safe, with Zarqawi and bin Laden in control of Iraq, its people, and its resources? Having removed a dictator who hated free peoples, we will not stand by as a new set of killers, dedicated to the destruction of our country, seizes control of Iraq by violence.

Read it all here.