Oath
I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, of whom or which I have heretofore been a subject or citizen; that I will support and defend the Constitution and laws of the United States of America against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I will bear arms on behalf of the United States when required by the law; that I will perform noncombatant service in the Armed Forces of the United States when required by the law; that I will perform work of national importance under civilian direction when required by the law; and that I take this obligation freely, without any mental reservation or purpose of evasion; so help me God.
So, we can sue to have him stripped of his citizenship for violating his Oath?
Class action? White House online petition? Where do I sign up?
How can US citizenship be lost?
Under the current scheme, there are seven acts that are considered expatriating and will result in the loss of citizenship. These are:
Being naturalized in a foreign country, upon the person’s own application made after reaching 18 years of age;
Making an oath or other declaration of allegiance to a foreign country or division thereof, again, after reaching 18 years of age;
Serving in the armed forces of a foreign country if those armed forces are engaged in hostilities against the US , or if the person serves as an officer;
Working for the government of a foreign country if the person also obtains nationality in that country, or if to work in such a position an oath or other declaration of allegiance is required;
Making a formal renunciation of US citizenship before a US consular officer or diplomat in a foreign country;
Making a formal written statement of renunciation during a state of war, if the Attorney General approves the renunciation as not contrary to US national defense; and
Committing an act of treason against the US , or attempting by force or the use of arms to overthrow the government of the US . Renunciation by this means can be accomplished only after a court has found the person guilty.