Article II, Section I of the U.S. Constitution provides that: "Before [an incoming U.S. president] enters on the execution of his office, he shall take the following oath or affirmation: 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.That's it. Just a few words. So our heart went out to Chief Justice John Roberts a little over an hour ago when he appeared to slip up on his administration of the oath to President Obama. For those who missed it, or would like...