United States presidential inauguration

The swearing-in of the President of the United States occurs upon the commencement of a new term of a President of the United States. The United States Constitution mandates that the President make the following oath or affirmation before he or she can "enter on the Execution" of the office of the presidency:

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.

The newly elected or re-elected President traditionally adds "so help me God" to the constitutionally mandated statement.

The swearing-in traditionally takes place at 12 noon local time (UTC-5 hours) on Inauguration Day at the United States Capitol in Washington, D.C., with the Chief Justice of the United States administering the oath. From the presidency of Martin Van Buren through Jimmy Carter, the ceremony took place on the Capitol's East Portico. Since the 1981 inauguration of Ronald Reagan, the ceremony has been held at the Capitol's West Front. The inauguration of William Howard Taft in 1909 and Reagan in 1985 were moved indoors at the Capitol due to cold weather. Until 1937, Inauguration Day was March 4. Since then, Inauguration Day has occurred on January 20 (the 1933 ratification of the Twentieth Amendment changed the start date of the term).

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