The Supreme Court on Friday agreed to hear the Trump administration’s appeal in defense of President Donald J. Trump’s ban on asylum claims at the southern border. The ban is one of the central parts of the president’s immigration agenda.

The court took the government’s case, Mullin v. Refugee and Immigrant Center for Education and Legal Services, No. 26-239, according to the court’s docket. It will look only at the first two questions the administration raised. Homeland Security Secretary Markwayne Mullin is the lead name on the government’s side.

The policy stays in effect while the court case goes on, NBC News reported. A ruling is expected before the end of June.

The ban comes from a proclamation the president signed on Jan. 20, 2025, his first day back in office. It declared an “invasion” at the southern border. Under one part of it, anyone who crosses the border without the required papers can be removed right away, without the chance to claim asylum.

Solicitor General D. John Sauer told the justices that federal immigration law and the Constitution give the president broad power to keep people from entering the United States. The policy “rests on a commonsense understanding of the President’s inherent and delegated powers to exclude aliens,” Mr. Sauer wrote. He pointed to a part of immigration law that lets the president block anyone whose entry he finds would be “detrimental to the interests of the United States.”

The administration asked the high court to step in after two lower-court losses. U.S. District Judge Randolph Moss in Washington ruled against the policy in July 2025. The U.S. Court of Appeals for the District of Columbia Circuit upheld that ruling in April.

The asylum case is the third major case on the president’s immigration policies now before the court, NBC News reported. It follows a related ruling in June in favor of the president’s power over the border.