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What must the president promise to do when he takes the oath?

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December 14, 2008 9:41PM

Each president recites the following oath, in accordance with Article II, Section I of the U.S. Constitution: "I do solemnly swear (or affirm) that I will faithfully execute the office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."