As I posted in US Constitution and Insurrection the 14th amendment [An RBG is an expert in civil rights law following from the 14th amendment] provides that : No person shall be a Senator or Representative in Congress, or elector of President and Vice President, or hold any office, civil or military, under the United States, or under any State, who, having previously taken an oath, as a member of Congress, or as an officer of the United States , or as a member of any State legislature, or as an executive or judicial officer of any State, to support the Constitution of the United States, shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof. But Congress may by a vote of two-thirds of each House, remove such disability
A SC Justice is an officer of the United States
Very very interesting, thank you for that excerpt.