by Oath or Affirmation
by Senators During Impeachment Trials.
Senate shall have the sole Power to try all Impeachments.
When sitting for that Purpose, they shall be on Oath or
Affirmation. U.S. Const., art. I, § 3.
he 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." U.S. Const., art. II, § 1.
by State and Federal Legislators, Executive Officials, and
Senators and Representatives before mentioned, and the Members
of the several State Legislatures, and all executive and
judicial Officers, both of the United States and of the
several States, shall be bound by Oath or Affirmation, to
support this Constitution . . . U.S. Const., art. VI.