Harvard University won a temporary court order blocking the Trump administration from enforcing a ban on international students at the school, giving it a win in a high-stakes legal fight with broad implications for higher education in the U.S.

U.S. District Judge Allison Burroughs ruled on Friday that the government can¡¯t enforce the ban, which it imposed the day before. Burroughs issued her ruling just hours after Harvard sued the U.S. in Boston federal court. She granted the university a temporary restraining order (TRO), finding that it would sustain ¡°immediate and irreparable injury¡± if the Department of Homeland Security directive went into effect.

The directive threatens to deliver a crippling blow to the oldest and richest U.S. university and escalates the government¡¯s fight with elite colleges.