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

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Mrs. Bush on Sunday said, "Well, here we are once again. This is the eighth time we've waited for the very first event of the holiday season, and that's when the big tree is brought. This is the Fraser fir for the Blue Room. It'll be the great big tree that this year will be decorated with ornaments from all around the United States, decorated by artists from all around the United States." More Videos

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

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