Oath or Affirmation Clause.The clause of the U.S. Constitution requiring members of Congress and the state legislatures, and all members of the executive or judicial branches — state or local — to pledge by oath or affirmation to support the Constitution. U.S. Const. art. VI, cl. 3.

[Cases: Officers and Public Employees 36(1). C.J.S. Officers and Public Employees § 59.]

[Blacks Law 8th]