A federal judge blocked President Trump's order banning international students at Harvard, but the effort has prompted concern at campuses nationwide among students and university leaders.

In an attempt to justify his order to ban foreign students and scholars from Harvard, President Trump claimed the prestigious university is offering remedial math classes to international students.

A Boston-based federal judge placed a temporary restraining order Friday on the Trump administration, blocking it from revoking Harvard University's foreign student program, saying it will cause "immediate and irreparable injury.