Denaturalization is the legal process through which the government seeks to revoke U.S. citizenship obtained through naturalization. Recent federal enforcement activity has increased attention around denaturalization, but the government cannot automatically take away someone’s citizenship simply because it reviews their immigration history.
A naturalized citizen may face denaturalization when the government alleges that citizenship was illegally obtained or was procured through concealment of a material fact or willful misrepresentation. Federal law establishes specific legal standards for these cases. (uscode.house.gov)
In a recent interview, immigration attorney Haim Vasquez discussed what is driving concerns about denaturalization, how these cases work, and why an omission or incorrect answer on an immigration application does not automatically mean a person will lose U.S. citizenship.
The difference between a mistake, an omission, a false statement, and a material misrepresentation can be extremely important. Anyone who receives a government communication concerning their citizenship or previous immigration history should understand what is being requested 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 U.S. citizenship that a person obtained through the naturalization process.
Under 8 U.S.C. § 1451, the federal government may pursue civil denaturalization when it alleges that citizenship:
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 procured citizenship if they did not satisfy a legal requirement when they naturalized. In other cases, the government may allege that the person intentionally concealed or misrepresented information that was material to the naturalization decision. (uscode.house.gov)
Denaturalization generally concerns people who obtained citizenship through naturalization. It does not mean that every discrepancy, mistake, forgotten detail, or incomplete answer automatically provides a legal basis 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 memorandum also states that these categories do not prevent the Civil Division from pursuing other cases it determines are appropriate.
On August 3, 2026, the Department of Justice reported that it had filed 123 civil denaturalization complaints since January 20, 2025. DOJ has continued announcing denaturalization-related cases since that report, including additional civil actions announced in September 2026.
Those numbers reflect enforcement activity, not final findings against every person named in a complaint. A civil complaint contains allegations that still must be established in court.
Can the Government Automatically Revoke Citizenship?
No.
In a civil denaturalization case, the Department of Justice generally files a lawsuit in United States District Court under 8 U.S.C. § 1451.
The naturalized citizen can respond to the allegations and defend the case in federal court.
The process may involve:
- A civil complaint
- A formal response
- Discovery
- Documentary evidence
- Depositions or testimony
- Motions
- Trial or other federal court proceedings
- A decision from a federal judge
In civil denaturalization cases, the government carries a demanding burden of proof.
Federal courts have described that burden as clear, unequivocal, and convincing evidence that does not leave the issue in doubt. A federal court reaffirmed that standard in a March 2026 denaturalization decision.
The existence of an investigation or lawsuit therefore does not mean citizenship has already been revoked.
Civil Denaturalization and Criminal Naturalization Fraud Are Different
Most of this article discusses civil denaturalization, but there is also a separate criminal process involving unlawful procurement of citizenship.
Federal law makes it a crime to knowingly procure or attempt to procure naturalization contrary to law under 18 U.S.C. § 1425.
If a person is convicted under that statute, 8 U.S.C. § 1451(e) directs the court that entered the conviction to revoke and set aside the naturalization order and cancel the Certificate of Naturalization.
Civil denaturalization and criminal naturalization fraud involve different procedures and burdens of proof.
This distinction is important because a government contact concerning citizenship should be evaluated based on exactly what type of investigation, lawsuit, or criminal matter is involved.
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
For a civil claim based specifically on concealment of a material fact or willful misrepresentation, the government must establish the elements required by the statute, including materiality. Federal law expressly refers to concealment of a material fact and willful misrepresentation.
A fact may be considered material when truthful disclosure could have influenced the naturalization inquiry or led investigators to information relevant to eligibility.
However, not every denaturalization theory works exactly the same way.
That distinction is important.
Intent Is Not the Only Factor
There are different legal theories the government may use in a denaturalization case.
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
Under this theory, the central issue may be whether the person was legally eligible for citizenship at the time it was granted.
The government does not always need to prove that the person deliberately intended to obtain citizenship through fraud if it can establish that a required legal condition for naturalization was not satisfied.
False Testimony and Good Moral Character
False testimony creates another important distinction.
Under immigration law, a person who gives false testimony under oath for the purpose of obtaining an immigration benefit can be barred from establishing good moral character during the relevant statutory period.
Importantly, USCIS guidance recognizes that false testimony used to obtain an immigration benefit can affect good moral character even when the false testimony itself was not material.
That means it is too broad to say that an inaccurate statement can never matter unless it changed the outcome of the naturalization application.
The circumstances of the statement, whether it was testimony under oath, the person’s intent, timing, and the underlying eligibility requirements all matter.
Concealment or Intentional Misrepresentation
The government may separately claim that a person intentionally concealed a material fact or deliberately provided materially 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 is why an isolated mistake should not be evaluated without reviewing the entire immigration record.
What Information Could Trigger a Review?
A review may begin when a federal agency discovers possible inconsistencies between a person’s naturalization records and other information.
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
Recent DOJ denaturalization complaints have included allegations involving false identities, immigration fraud, undisclosed criminal conduct, financial fraud, violent crimes, and other issues that the government claims affected eligibility for naturalization.
A complaint represents allegations. It does not itself establish that the accused person committed the conduct alleged.
Does a Criminal Conviction After Naturalization Automatically Cause Denaturalization?
No.
The date of the conduct can matter significantly.
A conviction that occurs after naturalization may lead the government to investigate when the underlying conduct actually occurred.
For example, in a March 2026 civil case, a federal court revoked a man’s naturalization after finding that the government had established that his drug trafficking conduct occurred during the period in which he was required to demonstrate eligibility for naturalization, even though later proceedings concerning that conduct occurred after he became a citizen.
The important issue is therefore not simply the date of an arrest or conviction.
An attorney may need to determine:
- When the alleged conduct occurred
- What was asked on Form N-400
- What was said during the naturalization interview
- Whether the conduct affected good moral character
- Whether the conduct made the person legally ineligible for citizenship
- Whether information was concealed or misrepresented
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
The federal court ultimately determines whether the government has established the legal basis for civil denaturalization under the required burden of proof.
What Happens If a Judge Revokes Citizenship?
Under 8 U.S.C. § 1451(a), a civil judgment revoking naturalization is generally effective as of the original date of the naturalization order and certificate.
The consequences can be significant.
Depending on the facts, the individual may face issues involving:
- Cancellation and surrender of the Certificate of Naturalization
- Loss of the ability to claim rights based on naturalized U.S. citizenship
- Loss or revocation of a U.S. passport
- Review of prior immigration status
- Possible removal proceedings
- Additional immigration consequences
- Separate criminal consequences when criminal charges or convictions are involved
It is important not to assume that the individual simply “returns” to lawful permanent resident status after denaturalization.
The immigration consequences depend on the basis for revocation and whether the person’s prior permanent residence or other immigration status was itself lawfully obtained.
In some cases, the underlying immigration status may also be challenged.
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:
- Form N-400
- Green card application records
- Prior immigration petitions
- Asylum records, if applicable
- Certificate of Naturalization
- Current and previous passports
- Entry and departure records
- Arrest and criminal court records
- Marriage and divorce documents
- Immigration court records
- Prior names or identity documents
- Communications from USCIS, ICE, or DOJ
Tell your attorney about the complete history, including facts that may seem old, embarrassing, or insignificant.
A meaningful review requires looking at the actual applications, questions, answers, dates, and underlying immigration eligibility.
What Should You Do If the Government Contacts You?
Take the communication seriously, but do not assume that receiving a letter or request means the government has already established a denaturalization case.
Seek legal guidance promptly 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 About Denaturalization?
No.
Current Department of Justice policy reflects increased enforcement activity in this area, but denaturalization still requires a legal basis supported by evidence.
In a civil case, the government must pursue the matter in federal court and satisfy the applicable burden of proof.
The increased number of cases does not mean every naturalized citizen with an old arrest, an incorrect answer, or an inconsistency in an immigration record will lose citizenship.
The relevant questions involve the actual facts, the person’s eligibility at the time of naturalization, and the specific legal theory the government is pursuing.
Stay Informed About Citizenship and Immigration Changes
Citizenship and immigration enforcement policies can change and may generate confusing or alarming headlines.
Reliable information can help distinguish between an enforcement announcement and what the law requires in an individual case.
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 and general articles can provide education, but they cannot determine whether a specific naturalization record creates a legal risk.
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 Form N-400 and the naturalization record
- Analyze earlier immigration applications
- Review permanent residence history
- Identify possible inconsistencies or omissions
- Review criminal history
- Evaluate government communications
- Review a civil denaturalization complaint
- Coordinate issues involving immigration and criminal law
- Explain possible immigration consequences
- Develop a legal response based on the individual record
Attorney Haim Vasquez brings experience as an immigration attorney, an immigrant himself, and a former Assistant District Attorney. That background is particularly useful when a naturalization issue overlaps with criminal records or allegations involving prior criminal conduct.
We provide bilingual guidance in English and Spanish with a clear and strategic approach.
Speak With an Attorney Before Responding
A denaturalization investigation or lawsuit can affect citizenship, immigration status, and future legal proceedings.
If the government contacts you about your naturalization history, preserve your documents, pay close attention to deadlines, and understand what is being requested before providing statements or explanations.
Haim Vasquez Legal Group can review your naturalization history, previous immigration applications, criminal records, and government communications to help you understand the issues involved.
Frequently Asked Questions About Denaturalization
Can USCIS revoke my citizenship directly?
In a civil denaturalization case under 8 U.S.C. § 1451(a), the government generally seeks revocation through a lawsuit in federal district court. USCIS or ICE does not independently issue the final federal court judgment revoking naturalization in that civil process.
Does an error on my N-400 mean I will lose citizenship?
Not automatically. The effect of an incorrect answer depends on the type of error, the person’s intent when relevant, whether the information affected eligibility, whether false testimony occurred, and the legal theory being pursued.
Does it matter if the omission was unintentional?
For a claim based on willful misrepresentation or concealment, intent is important. However, the government can also pursue an illegal-procurement theory based on an alleged failure to satisfy a legal requirement for naturalization.
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 automatically. Revocation of citizenship and removal from the United States involve separate legal issues. What happens afterward depends on the person’s prior immigration history and the basis on which citizenship was revoked.
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.
