Of the 42 presidents, only 17 have occupied the Oval Office. Discover more about the President's Office.

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President Bush on Thursday said, "...I've come to herald the success of a good piece of legislation. I have come to talk to our citizens about the results that this reform has yielded. And I call upon those who can determine the fate of No Child Left Behind in the future to stay strong in the face of criticism, to not weaken the law -- because in weakening the law, you weaken the chance for a child to succeed in America -- but to strengthen the law for the sake of every child." More Videos

View these historical photographs of the presidents and first ladies in rooms of the White House

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