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 Friday said, "You have done a lot of important and hard work in helping the region understand the importance of two states living side by side in peace. No question this is a hard challenge, but nevertheless, people must recognize that we have made a good deal of progress. And a lot of it has to do with your leadership, and I thank you." More Videos

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

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