The administration has not provided a reason for most cases, but some students have been targeted because of their pro-Palestinian activism.

An increasing number of student deportation threats involve the revocation of visas based on relatively minor offenses like years-old misdemeanors, according to immigration attorneys, or sometimes no reason at all.

U.S. immigration authorities have revoked the visas of roughly 90 international students at several Texas universities. The big picture: The Trump administration has revoked the visas of nearly 400 international students across the country in the last three weeks,