The Supreme Court heard arguments Tuesday over the Trump administration's effort to end Temporary Protected Status for migrants from Haiti and Syria, a case that could affect hundreds of thousands of people currently shielded from deportation under the decades-old humanitarian program. The justices questioned attorneys on both sides about the scope of executive authority over the program and whether the administration followed proper procedures in moving to terminate the protections.

Temporary Protected Status, known as TPS, is granted by the Secretary of Homeland Security to nationals of countries experiencing ongoing armed conflict, environmental disasters, or other extraordinary conditions that make safe return impossible. The program currently covers migrants from roughly a dozen countries, with Haitians and Syrians among the largest groups. Terminating their designations would leave those individuals vulnerable to deportation unless they have obtained other legal status.

Migrants and advocacy groups challenging the administration's actions argued before the court that the terminations were unlawful, with some plaintiffs pointing to actions by Homeland Security Secretary Kristi Noem as central to their appeal. The government contended that the executive branch holds broad discretionary authority to end TPS designations and that courts should not second-guess those policy decisions.

The case arrives as the Trump administration has pursued an aggressive immigration enforcement agenda, including revoking TPS designations and challenging lower court rulings that blocked some of those efforts. Lower federal courts had previously ruled against the administration's termination orders, prompting the appeal to the Supreme Court. The high court's eventual ruling will likely set a significant precedent for how much judicial oversight applies to TPS decisions going forward.

A decision is expected before the Supreme Court's current term concludes in late June or early July. The outcome will have direct consequences for the estimated 500,000 or more Haitian and Syrian TPS holders currently living and working in the United States, many of whom have been in the country for years or decades.