Denaturalization is the legal process through which the government attempts to revoke U.S. citizenship obtained through naturalization. Although new federal enforcement priorities have raised concerns among naturalized citizens, the government cannot automatically take away someone’s citizenship simply because it decides to review their immigration history.
In a recent interview, immigration attorney Haim Vasquez explained what is driving these concerns, how a denaturalization case works, and why an omission on an immigration application does not always mean a person will lose their citizenship.
The difference between an error, an omission, and a material misrepresentation can be critical. Any naturalized citizen who receives a government communication related to their immigration or citizenship history should seek legal guidance before responding.
Watch the full interview on the Haim Vasquez Legal Group YouTube channel, and follow the firm on Facebook and Instagram for more information about immigration and U.S. citizenship.
What Is Denaturalization?
Denaturalization is the revocation of citizenship that a person obtained through the naturalization process.
Federal law allows the Department of Justice to file a civil lawsuit when it claims that citizenship:
- Was illegally obtained
- Was obtained by concealing a material fact
- Was obtained through an intentional false statement
A person may have illegally obtained citizenship if they did not meet a legal requirement at the time of naturalization. In other cases, the government may argue that the person concealed or misrepresented important information during the application process or naturalization interview.
Denaturalization applies to people who obtained citizenship through naturalization. It does not mean that every discrepancy, mistake, or incomplete answer on an immigration application automatically allows the government to revoke citizenship.
Why Is Denaturalization Receiving More Attention?
On June 11, 2025, the Department of Justice’s Civil Division issued a memorandum directing its attorneys to prioritize and pursue denaturalization cases that are permitted by law and supported by evidence.
The memorandum identifies several enforcement priorities, including cases involving:
- National security, terrorism, or espionage
- War crimes and human rights violations
- Gangs, cartels, and criminal organizations
- Serious crimes that were not disclosed during naturalization
- Human trafficking, sexual offenses, and violent crimes
- Fraud against the federal government
- Fraud against individuals or private businesses
- Corruption, immigration fraud, and material misrepresentations
- Cases involving pending criminal charges
The government is not necessarily limited to these categories. The Department of Justice also reserved the authority to pursue other denaturalization cases that it considers sufficiently important.
The increase is not merely theoretical. On August 3, 2026, the Department of Justice reported that it had filed 123 civil denaturalization lawsuits since January 20, 2025.
However, a lawsuit contains the government’s allegations. Filing a lawsuit does not, by itself, constitute a final decision revoking a person’s citizenship.
Can the Government Automatically Revoke Citizenship?
No. In a civil denaturalization case, the Department of Justice must file a lawsuit in a United States District Court.
The naturalized citizen has the right to:
- Receive notice of the lawsuit
- Respond to the allegations
- Challenge the government’s evidence
- Submit documents and testimony
- Defend their citizenship in federal court
The final decision belongs to a federal judge. USCIS, ICE, or an individual immigration officer cannot independently issue the final order revoking citizenship in a civil denaturalization case.
The government also faces a high burden of proof. It must support its allegations with evidence that is clear, unequivocal, and convincing.
This demanding standard reflects the seriousness of taking citizenship away from a person.
A denaturalization investigation or lawsuit should be taken seriously, but it does not mean the outcome has already been decided.
Can an Omission Lead to Denaturalization?
It depends on what information was omitted, why it was omitted, and whether it would have affected the naturalization decision.
Omissions and inaccurate statements may appear in:
- Form N-400, Application for Naturalization
- The naturalization interview
- Previous permanent residence applications
- Family-based immigration petitions
- Asylum applications
- Entry and departure documents
- Answers concerning arrests, crimes, or criminal history
- Information about prior identities or names
In a case based on concealment or misrepresentation, the government generally must show that the conduct was intentional and that the omitted fact was material.
A material fact is information that could have affected the naturalization decision or led to an investigation that may have revealed a legal reason to deny citizenship.
The U.S. Supreme Court has rejected the idea that any false statement, regardless of its connection to citizenship eligibility, automatically justifies revocation. In Maslenjak v. United States, the Court explained that there must be a connection between the illegal conduct and the person’s acquisition of citizenship.
Every case requires an individual analysis.
An omission that appears minor may be important if it concealed an eligibility problem. At the same time, an incorrect answer that did not affect eligibility may not satisfy the legal standard required for denaturalization.
Intent Is Not the Only Factor
It is important to distinguish between the two principal legal grounds commonly used in denaturalization cases.
Citizenship Was Illegally Obtained
The government may argue that the person did not satisfy a legal requirement when they naturalized.
For example, the government may claim that the individual:
- Was not lawfully admitted as a permanent resident
- Did not meet the good moral character requirement
- Did not satisfy the required residence or physical presence period
- Obtained permanent residence through a fraudulent relationship or identity
- Had another legal barrier to naturalization
In this type of case, the absence of fraudulent intent may not necessarily resolve the issue.
The central question may be whether the person actually satisfied all legal requirements when citizenship was granted.
Concealment or Intentional Misrepresentation
In other cases, the government may allege that the person intentionally concealed a material fact or deliberately provided false information.
Relevant questions may include:
- What did the person know?
- How did the person understand the question?
- Why was the answer provided?
- Was the omitted information material?
- How would an officer have responded to the correct information?
- Would further investigation have uncovered a legal disqualification?
This distinction is one reason no one should assume that every omission or incorrect answer will have the same effect.
What Information Could Trigger a Review?
A denaturalization investigation may begin when the government discovers possible differences between a person’s naturalization application and other records.
The review may involve information concerning:
- A previous identity or name
- A prior removal order
- Earlier entries under another identity
- Arrests or crimes committed before naturalization
- Undisclosed criminal conduct
- Marriages or divorces
- Marriage fraud
- Military service
- Previous immigration applications
- Statements made under oath
- Financial fraud
- Fraud involving government programs
Recently announced Department of Justice cases have included allegations involving false identities, violent crimes, sexual abuse, marriage fraud, financial fraud, and criminal activity that was allegedly concealed during the naturalization process.
This does not mean every naturalized citizen with an arrest, an old mistake, or a difference between records will lose citizenship.
The dates, facts, original eligibility, and answers provided during the immigration process must be reviewed carefully.
What Happens During a Denaturalization Case?
The denaturalization process may involve several stages.
Review of the Immigration Record
USCIS or another federal agency may review the individual’s immigration file, commonly called the A-File.
The government may compare immigration applications with:
- Criminal records
- Biometric information
- Court documents
- Travel records
- Other government databases
Referral to the Department of Justice
If the government believes there is a legal basis for denaturalization, the matter may be referred to the Department of Justice for review.
The Department of Justice then determines whether to file a federal lawsuit.
Lawsuit in Federal Court
The Department of Justice may file a civil complaint in a United States District Court.
The complaint must explain why the government believes the citizenship was illegally obtained or obtained through fraud, concealment, or intentional misrepresentation.
Response and Defense
The naturalized citizen may respond to the complaint, dispute the allegations, challenge the evidence, submit documents, participate in the discovery process, and defend their citizenship before the court.
Judicial Decision
A federal judge determines whether the government has met its burden of proof.
If the government cannot prove the case under the required legal standard, the denaturalization lawsuit may be dismissed.
What Happens If a Judge Revokes Citizenship?
When a federal court orders denaturalization, the revocation is generally treated as effective from the original date of naturalization.
USCIS cancels the Certificate of Naturalization, updates its records, and notifies the Department of State.
The person may return to the immigration status held before naturalization. However, that status may also be challenged if the government claims it was obtained illegally.
Depending on the circumstances, the individual may face:
- Loss of a U.S. passport
- Loss of rights associated with U.S. citizenship
- Return to a previous immigration status
- Review of permanent resident status
- Possible removal proceedings
- Separate criminal consequences if charges or convictions are involved
Denaturalization does not produce the same immediate immigration result in every case.
The consequences depend on the legal basis for revocation and the person’s complete immigration and criminal history.
What Should You Do If You Are Concerned About Your Application?
Do not panic or automatically assume you will lose your citizenship.
You also should not contact the government to offer an improvised explanation before reviewing your immigration history with an attorney.
Begin by gathering:
- A copy of Form N-400
- A copy of your permanent residence application
- Previous family-based petitions
- Asylum documents or other immigration applications
- Your Certificate of Naturalization
- Current and previous passports
- Entry and departure records
- Arrest and criminal court records
- Marriage and divorce documents
- Immigration court decisions
- Correspondence from USCIS, ICE, or the Department of Justice
Tell your attorney about your complete history, including details that may appear embarrassing, insignificant, or old.
Your legal representative needs the full facts to determine whether any information was material and whether there may have been an issue with your original eligibility for naturalization.
What Should You Do If the Government Contacts You?
Seek legal guidance immediately if you receive:
- A request for an interview
- A subpoena
- A request for documents
- A visit from government investigators
- A letter from USCIS or the Department of Justice
- A civil complaint filed in federal court
- A summons containing a deadline to respond
Do not ignore the communication.
You should also avoid signing statements, surrendering original records, or agreeing to an interview without understanding the purpose and possible consequences.
An early response allows an attorney to review the immigration history, preserve evidence, identify errors in the government’s allegations, and prepare a strategy before any deadline expires.
If you received a government communication concerning your citizenship, call Haim Vasquez Legal Group at (214) 833-3277.
Should Every Naturalized Citizen Be Concerned?
The federal policy expands enforcement priorities and shows that the Department of Justice is filing more cases.
However, it does not mean every naturalized citizen is about to lose their citizenship.
Denaturalization remains a legal process that requires:
- A basis authorized by federal law
- Evidence concerning eligibility or a material misrepresentation
- A lawsuit filed in federal court
- An opportunity for the citizen to respond
- A decision from a federal judge
Increased enforcement makes it more important to respond quickly to government contact.
It does not eliminate the legal protections available to naturalized citizens or the government’s burden of proof.
Stay Informed Through Our Social Media
Citizenship and immigration policies can change and may generate alarming headlines.
Reliable legal information can help naturalized citizens distinguish between a new enforcement priority and the automatic loss of citizenship.
To stay informed:
- Watch the complete interview with Attorney Haim Vasquez on YouTube
- Follow Haim Vasquez Legal Group on Facebook
- Follow the firm on Instagram for educational videos in English and Spanish
- Share this article with a naturalized citizen who has questions
- Review our latest immigration news and legal updates
Social media content is educational and does not replace a legal review of your immigration record.
How Haim Vasquez Legal Group Can Help
Haim Vasquez Legal Group represents individuals and families in complex immigration and citizenship matters throughout the United States.
Our legal team can:
- Review your naturalization application
- Analyze previous immigration applications
- Investigate possible omissions or inconsistencies
- Review criminal history
- Respond to government communications
- Evaluate a denaturalization lawsuit
- Prepare a defense strategy
- Explain possible immigration consequences
We provide bilingual guidance in English and Spanish with a clear and strategic approach.
Frequently Asked Questions About Denaturalization
Can USCIS revoke my citizenship directly?
In a civil case, revocation generally requires a lawsuit filed by the Department of Justice and an order from a federal court.
Does an error on my N-400 mean I will lose citizenship?
Not automatically. It is necessary to determine what information was incorrect, whether it was material, and how it affected eligibility.
Does it matter if the omission was unintentional?
Yes. Intent may be important in cases involving concealment or misrepresentation. However, the government may also argue that citizenship was illegally obtained because a legal requirement was not satisfied.
What standard of proof must the government meet?
In a civil denaturalization lawsuit, the government must present evidence that is clear, unequivocal, and convincing.
Can I defend myself in federal court?
Yes. You may respond to the lawsuit, challenge the allegations, submit evidence, and obtain legal representation.
Does denaturalization mean immediate deportation?
Not necessarily. Revocation of citizenship and possible removal proceedings are related but separate legal processes. The outcome depends on the person’s previous status and complete immigration history.
Speak With an Attorney Before Responding
A denaturalization investigation may affect your citizenship, your family, and your future in the United States.
Do not respond based only on fear, rumors, or general information found on social media.
Preserve all documents, review every deadline, and obtain legal guidance before speaking with investigators or submitting an explanation.
Legal Disclaimer: This content is provided for informational and educational purposes only. It does not constitute legal advice or create an attorney-client relationship. Immigration laws, enforcement priorities, and procedures may change. Consult an immigration attorney about the specific facts of your case.
