6. The President of the United States takes an oath of office:
"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 major concept does this oath represent?

The oath of office of the president of the United States is the oath or affirmation that the president of the United States takes after assuming the presidency but before exercising or carrying out any presidential powers or duties. The wording of the oath is specified in Article II, Section One, Clause 8, of the United States Constitution.

This clause is one of three oath or affirmation clauses in the Constitution, but it is the only one that actually specifies the words that must be spoken. Article I, Section 3 requires Senators, when sitting to try impeachments, to be "on Oath or Affirmation." Article VI, Clause 3, similarly requires the persons specified therein to "be bound by oath or affirmation, to support this Constitution." The presidential oath requires much more than that general oath of allegiance and fidelity. This clause enjoins the new president to swear or affirm that he "will to the best of my ability, preserve, protect and defend the Constitution of the United States.

Explanation:

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