Another thing. The link leaves out an important part of the

Posted on: December 19, 2016 at 14:37:12 CT

clause without even suggesting, usually by ellipsis (...) that there's more. And what it leaves out is "...without the consent of Congress..." The fact that there's an unindicated omission should raise suspicions about the writer's motive and honesty. Given that it's from a liberal publisher, Brookings, dishonesty is the likeliest cause.
Here's the whole clause: No Title of Nobility shall be granted by the United States: And no Person holding any Office of Profit or Trust under them, shall, without the Consent of the Congress, accept of any present, Emolument, Office, or Title, of any kind whatever, from any King, Prince or foreign State.