Answer
The answer is no. Agyenim Boateng is not a member of the U.S. Supreme Court. The Supreme Court comprises nine justices appointed by the President and confirmed by the Senate. Currently, the justices are John Roberts (Chief Justice), Clarence Thomas, Samuel Alito, Sonia Sotomayor, Elena Kagan, Neil Gorsuch, Brett Kavanaugh, Amy Coney Barrett, and Ketanji Brown Jackson.