Supreme Court Allows Third-Country Deportations to Continue While Legal Fight Plays Out

On September 29, 2026, the U.S. Supreme Court allowed the Trump administration to deport noncitizens to a third country without letting them first argue they could face harm there. The brief order took effect right away and will stay in place while the Court reviews the case The Guardian.

The vote was 6-3. The six conservative justices temporarily blocked a lower-court order that had required advance warning so people could say they feared persecution, torture or other harm in that third country. Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson dissented.

The majority scheduled oral arguments for December on the bigger legal question: does the third-country policy follow federal immigration law and due process, the basic right to fair procedures? The order from Tuesday only covers deportations until then. It was the second time the Court has backed the administration on third-country deportations through its emergency docket, the fast-track process for urgent requests.

The administration had made an emergency request days earlier. It asked to keep sending people to countries other than their home country while the lawsuits continue. The solicitor general, the government's top lawyer before the Court, argued that the lower courts' notice requirements made it harder to carry out deportation orders and to make deals with other countries.

Before Tuesday, two lower courts had ruled separately for immigrants challenging these transfers. One district court set rules the government had to meet before a third-country deportation. In September 2026, a U.S. appeals court rejected the administration's fast-track deportation policy, largely keeping in place a February ruling in the case Reuters.

Court records say the practice has run with little or no warning since March 2025 The Daily Record. After an earlier Supreme Court action, the Department of Homeland Security put out new guidance in a memo called "Third Country Removals Following the Supreme Court's Order." The people suing said the government appeared to deport people to a third country with no notice and no chance to challenge it.

The size of the program can now be counted. More than 25,000 immigrants have been sent to at least 29 countries under these deals, according to Third Country Deportation Watch. Separately, some immigrants have challenged a third-country transfer through a petition for review, the normal appeals path for fighting a final deportation order.

The broader context here is about timing, not the final answer. An emergency stay does not decide who is right. It decides what happens during the lawsuit. By lifting the notice rule, the majority placed the short-term risk on deportable noncitizens and on the countries receiving them. The Court can still set a different rule after full arguments in December.

Looking toward December, three practical issues stand out. First is protection. Claims under the Convention Against Torture, a treaty ban on sending people where they may be tortured, plus statutory withholding and asylum, all depend on danger in a specific country. Without a chance to raise that danger beforehand, the check happens after the transfer. Second is where to sue. Federal law usually sends challenges to final deportation orders to appeals courts through petitions for review. Orders from district courts that add pre-deportation steps do not fit neatly in that system, which is part of why the government sought a stay. The December case will test where fights over notice and country choice belong, and what evidence courts need. Third is diplomacy. Deals with third countries let the U.S. deport more people than through direct returns to home countries. They also create side deals on detention, screening and further movement that immigration courts rarely see. The figure of 25,000 people sent to at least 29 countries points to a parallel system running next to normal home-country returns.