In the United States, de-naturalization is rare but possible. De-naturalization occurs when the government strips a U.S. citizen of his or her citizenship. For natural-born U.S. citizens, you cannot have your citizenship revoked. However, if you underwent the naturalization process, then under very specific circumstances, then there can be grounds for de-naturalization. If you are a Michigan resident facing allegations and de-naturalization threats, you do have rights. This is what it means for the U.S. to allege that you concealed a material fact or willfully misrepresented yourself.
The U.S. Citizenship and Immigration Services describe misrepresentation and concealment of material fact as deliberate deceit or failure to disclose material facts. De-naturalization can only occur if you misrepresented or concealed a fact, if you did so willfully and deliberately and if the facts were material.
If this fact would have stopped you from becoming a naturalized citizen, then it is a material fact or misrepresentation. Now, this accounts misrepresentations and omissions of fact. For instance, if you know that there is a fact that could compromise your application or interview and you do not disclose it, you are still willfully misrepresenting yourself. The facts may be from your application or the naturalization interview.
A court will test whether or not the facts were material. Often, their decision will have its basis in whether or not the court would have initially made a different decision. If you were no eligible for naturalization for any reason before naturalization, then the government may allege that your naturalization was illegal.
None of the above article is to be interpreted as legal advice. It is for informational purposes only.