Trump administration appeals court decision that blocks limits on international student and postdoc visas

The Department of Homeland Security has filed an appeal after a federal judge ruled that the agency cannot impose new restrictions on how long international students and postdoctoral researchers may stay in the United States.

The contested rule would have limited the duration of stay for these visa holders, a move the administration says is needed to protect American jobs and ensure security. Critics argue it could hurt U.S. research institutions that rely on foreign talent.

The appeal signals the administration’s broader effort to tighten immigration policy, even as the biotech and academic sectors watch closely for potential impacts on the scientific workforce.