"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."
What Obama and Chief Justice Roberts said:
ROBERTS: that I will execute the office of president to the United States faithfully
OBAMA: that I will execute
ROBERTS: faithfully the office of president of the United States
OBAMA: the office of president of the United States faithfully
It's a small mistake and apparently does not invalidate Obamas presidency but in the country of hanging chads and armies of lawyers I wonder if they made Obama take the oath of office again in private just to save themselves the hassle of crazy lawsuits.