Jeff Flake mentions this speech in his new book, Conscience of a Conservative: A Rejection of Destructive Politics and a Return to Principle. I think it warrants being re-printed and read.
Dear Mr. President, dear senators and members of the House, ladies and gentlemen:
My advisers advised me to speak on this important occasion in Czech. I don't know why. Perhaps they wanted you to enjoy the sweet sounds of my mother tongue.