The U.S. Department of Justice announced on October 5, 2026 that it has filed civil denaturalization complaints against 40 naturalized citizens, spread across 19 federal district courts. The filings were made between August 21 and October 2, 2026, which DOJ describes as the largest volume of denaturalization complaints filed in a single period under the current administration.
What Happened
The Civil Division filed 40 separate civil lawsuits asking federal courts to revoke citizenship and cancel certificates of naturalization. Attorney General Todd Blanche called it “the largest denaturalization effort in modern history.” Assistant Attorney General Brett Shumate, who leads the Civil Division, said the common thread across the cases is that “every single one of these individuals lied their way into U.S. citizenship.”
DOJ’s own release is explicit that these are allegations contained in civil complaints, with no determination of liability made yet — the cases will be decided by federal judges after each defendant has a chance to respond.
Who’s Affected
This is not a blanket risk to naturalized Americans. Civil denaturalization under U.S. law (8 U.S.C. § 1451(a)) applies only where the government can show that citizenship was “illegally procured or procured by concealment of a material fact or by willful misrepresentation” at the time of naturalization. DOJ grouped the 40 cases into categories: concealed criminal history, undisclosed aliases or false identity documents, visa or marriage fraud, and — separately — individuals it says were later convicted of serious crimes (including sexual offenses against minors, manslaughter, aggravated sodomy, espionage or acting as a foreign agent, money laundering, tax evasion, securities fraud, and healthcare fraud) that the government alleges were concealed during the naturalization process.
People who disclosed their history accurately when they naturalized are not the target population this filing describes.
Background
Denaturalization is a civil court process, not an automatic administrative revocation. The government must file a lawsuit in federal district court, and — per the statutory framework — must meet a demanding evidentiary standard: “clear, convincing, and unequivocal evidence which does not leave the issue in doubt,” a higher bar than the ordinary civil standard of proof. Defendants are named parties in these suits and can contest the allegations in court; there is no automatic loss of citizenship simply because a complaint has been filed. Civil denaturalization claims under this provision carry no statute of limitations, meaning the government can file years or decades after naturalization if it believes it can meet that evidentiary bar.
Outlook
DOJ frames this filing as a continuation of an enforcement push it has pursued through the Trump administration’s current term, with officials signaling more denaturalization filings are likely as the Civil Division continues reviewing naturalization files. Beyond that stated intent, DOJ’s release does not specify a timeline for when any of the 40 cases will be resolved.
