Ratify the original 13th Amendment
https://www.linkedin.com/pulse/missing-13th-amendment-found-lawyers-public-office-letennier
The “missing” 13th Amendment to the Constitution of the United States reads as follows:
“If any citizen of the United States shall accept, claim, receive, or retain any title of nobility or honour, or shall without the consent of Congress, accept and retain any present, pension, office, or emolument of any kind whatever, from any emperor, king, prince, or foreign power, such person shall cease to be a citizen of the United States, and shall be incapable of holding any office of trust or profit under them, or either of them.”
…
Before a thirteenth state could ratify, the War of 1812 broke out with England. By the time the war ended in 1814, the British had burned the Capitol, the Library of Congress, and most of the records of the first 38 years of government. Whether there was a connection between the proposed “title of nobility” amendment and the War of 1812 is not known. However, the momentum to ratify the proposed Amendment was lost in the tumult of war.