George W. Bush: “The challenges that remain in Iraq are serious.”

Is it in our interest that 25 million people who would have died now live? I think it is. On behalf of a grateful nation, thank you for your hard work and God bless you.

We know our words cannot help, but we believe the prayers of so many Americans will.

You've showed the great strength of America through your work—and that is your good heart.

History will remember him as among the finest public servants of his generation – a patriot who brought integrity, high intelligence, and seriousness of purpose to every position.