The Trump administration has revoked Harvard University’s ability to enroll international students in its escalating battle with the Ivy League school.

The Trump administration’s latest blow against Harvard University – cutting off its ability to enroll foreign students – rippled throughout higher education Thursday, because it aims at a major source of revenue for hundreds of schools across the United States.

The move was a major escalation in the administration’s efforts to pressure the college to fall in line with President Trump’s demands.