The vetting will go beyond student applicants and includes faculty, employees, contractors, guest speakers and tourists, according to the cable seen by NBC News.

Trump has been targeting Harvard for months, saying that the school had fostered liberal ideals and antisemitism. Harvard has argued in its lawsuit that the administration has violated the First Amendment through its targeting of international students. O’Leary jabbed the administration over its behavior toward Harvard on Friday.

Harvard University chose Chinese student Yurong “Luanna” Jiang to speak at its spring commencement on Thursday as the Trump administration “aggressively” revokes Chinese student visas. On the same day,

Harvard University held its commencement ceremony today as a federal district judge said she will issue a preliminary injunction blocking the Trump administration from making changes to Harvard’s student visa program indefinitely.

President Donald Trump on Wednesday claimed the “last thing” he wants to do is hurt Harvard, while his administration is still relentlessly hammering the elite university and as he mounted a new demand for the school to cap its admission of international students.

If the Trump administration succeeds in barring international students from enrolling at Harvard, it will benefit U.S. competitors such as China, experts say.