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U.S. President George W. Bush's pet dogs, Barney (bottom) and Spot (top) step off Marine One under t..

U.S. President George W. Bush's pet dogs, Barney (bottom) and Spot (top) step off Marine One under the guard of a U.S. Marine on the South Lawn of the White House, May 5, 2003. The president was returning from a visit to his ranch in Central Texas.

Presidential pooches: White House dogs through the years

Yahoo News

A look back at some of the pups that have served as "First Dog", a loyal companion to the President of the United States, as well as other furry companions. (Yahoo News)

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