After Supreme Court nominees are confirmed but before they’re “invested,” they take a constitutional oath and a judicial oath, both administered by the Chief Justice. Article VI of the Constitution necessitates the constitutional oath without specifying its contents: “[A]ll 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.” The judicial oath (administering justice without respect to persons, doing equal right to the poor and rich, and faithfully/impartially discharging/performing all duties incumbent upon them under the Constitution and laws) is a legislative creation.
The line for U.S. v. Jones hadn’t started forming when I arrived at the Court on Monday afternoon, so I went inside to check out the public exhibits. Behind the imposing bronze statue of John Marshall (which was sculpted by Joseph Story’s son!) is a lovely Sandra Day O’Connor collection. I made sure photography was OK and then snapped a few photos. Here’s Sandra Day O’Connor’s signed constitutional oath of office:
My own O’Connor autograph: