Even Those Who Became Citizens Years Ago Are at Risk in the U.S.

Strict oversight of immigration policies in the United States has taken on a new dimension. The Donald Trump administration filed lawsuits in federal courts to revoke the citizenship of 40 individuals who later acquired American citizenship. The Department of Justice described the effort as one of the most comprehensive citizenship revocation moves in modern American history.

The lawsuits announced on October 5, 2026, cover not only those convicted of serious crimes but also individuals alleged to have provided false information or withheld significant details in past immigration applications.

Moreover, in some cases, citizenship proceedings completed more than 20 to 30 years ago are being reexamined.

40 Separate Cases in 19 Federal Districts

According to a statement by the U.S. Department of Justice, lawsuits seeking to revoke citizenship were filed in 19 different federal judicial districts between August 21 and October 2.

Attorney General Todd Blanche described the initiative as one of the largest citizenship revocation efforts in modern history.

The ministry's disclosed files contain various allegations of espionage, sexual crimes, financial fraud, identity fraud and misleading the migration system.

In a key portion of the case, the veracity of the information supplied in citizenship applications is under scrutiny.

Citizenships Granted Years Ago Are Being Re-examined

One of the most striking aspects of the new initiative is that, by itself, the fact that citizenship was obtained after many years does not preclude an investigation and prosecution.

A file shows that a citizenship application made in 1993 was revived. In other cases, citizenship granted 15 to 20 years ago has been brought back under scrutiny for past migration procedures.

Under U.S. law, citizenship can be revoked by a federal court if it is shown that the applicant obtained citizenship through unlawful means or that material facts were deliberately concealed during the application.

The absence of a general statute of limitations in such legal cases allows even applications from decades ago to become subject to judicial review.

Which Accusations Are Most Prominent?

Of the 40 files disclosed, about 22 are said to link the core allegations to irregularities in immigration procedures.

These include applying with different identities, concealing past deportation orders, fake marriages, and employment relationships that do not reflect reality.

Other files highlight charges related to national security, sexual offenses, financial fraud, and crimes involving firearms.

In particular, files of individuals alleged to have been deported under one identity and later obtained citizenship with different identity details attract attention.

Even a single response in a citizenship application can carry weight.

In many cases, statements made on the N‑400 form filed when applying for U.S. citizenship play a decisive role.

The form also asks whether the applicant has ever committed any crime, even though they have not been previously arrested or charged.

Officials argue that deliberately concealing a crime committed before naturalization can provide a legal basis for revoking citizenship under certain circumstances.

In addition, some developments that occurred between the approval of the citizenship application and the oath ceremony must also be reported.

However, experts point out an important detail: not every false or incomplete statement automatically results in loss of citizenship. Whether the information could influence the citizenship decision and the legal conditions are evaluated by the courts.

Debate That Concerns Millions of Migrants

There are about 25 million people who later acquired citizenship in the United States. New lawsuits have also brought discussions about under what conditions the citizenship status of this large population could be reexamined.

Those who support the Trump administration's implementation argue that the cancellation of citizenships obtained through fake IDs, fraudulent marriages, or concealed crimes is necessary for the reliability of the legal system.

Critics, however, note that expanding the audits could cause uncertainty and anxiety among those who have been living as American citizens for many years.

In particular, the ability to reexamine past applications decades later and the fact that those without financial means in legal cases are not automatically assigned attorneys by the state are among the topics being debated.

Citizenships Will Not Be Cancelled Immediately

The 40 cases opened by the Department of Justice do not mean that the individuals' U.S. citizenships have been definitively revoked.

The federal government must prove with strong, convincing evidence that citizenship was obtained unlawfully in every file. The final decision will be made by federal courts.Therefore, the accusations against the named individuals in the cases are not yet considered verified findings by the courts.

New Cases May Arise

The policy document released by the U.S. Department of Justice in June 2025 had revealed that citizenship revocation cases were being made a priority area of implementation.

The ministry's announcement of 40 cases this time, after previously announcing a 24‑case initiative, signals that the scope of the program has expanded.

Officials' statements also show that new files could come to light.The latest development does not imply that anyone who later acquires U.S. citizenship is at risk, but it shows that the information supplied in citizenship applications can still be subject to legal review even years later.