Related Clues:

• Inauguration highlight
• It's sworn at a swearing-in
• Affirmation
• Curse or vow
• Witnesses take one
• It may be solemn
• Swearing-in promise
• Hippocratic thing
• Inauguration Day event
• Court statement
• Quadrennial White House administration
• Office entry requirement, perhaps
• Word of honor
• Inauguration Day highlight
• Curse or vow, e.g.