For hundreds of thousands of people every year who dream of studying or researching in the United States, a student visa is the golden ticket.

A class action lawsuit filed Friday asks a federal court to reinstate the legal status of international students caught up in a Trump administration crackdown that has left more than a thousand fearful of deportation.

President Donald Trump's administration has escalated its ongoing battle with Harvard, threatening to block the university from enrolling international students as the president called for withdrawing Harvard’s tax-exempt status.