President Donald Trump has signed a proclamation to suspend international visas for new students at Harvard University, the White House announced Wednesday, in a dramatic escalation of its efforts to block foreign nationals from enrolling at the elite university.

The same federal judge also extended her block on another attempt by the administration to stop the university from issuing student visas.

Harvard University is challenging President Donald Trump’s move to block foreign students from coming to the United States to attend the Ivy League school, calling it illegal retaliation for Harvard’s