Judge blocks Trump administration's plan to cap visas for grad students and postdocs

A federal judge issued a preliminary injunction on Monday, stopping the Trump administration's plan to limit the length of visas used by graduate students and postdoctoral researchers.

The Department of Homeland Security had intended to impose a four-year cap on those visas, a change that would have ended the ability of foreign scholars to remain in the United States for the full duration of their training.

Critics argue the restriction would damage the nation's research capacity, noting that international scientists comprise a large share of the U.S. life‑science workforce and that the move could erode biomedical leadership.

The ruling halts the policy, which was slated to take effect on Tuesday, and suggests the plaintiffs are likely to prevail as the case proceeds.