George W. Bush: “Russia's standing in the international community is at stake.”

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

We are heartbroken by the loss of life and the agony so many are feeling.

If any voters came hoping for a kind word and a hug, they’d have to settle for the kind word.

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.