US President Donald Trump renewed his criticism of Harvard University on Sunday, demanding the names and countries of its foreign students. He also questioned the Ivy League's requests for federal grants,

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.

An attempt to bar the school from hosting international students is just the latest escalation of an ongoing back-and-forth over Harvard's ideological future.

Harvard and the federal government are locked in a battle that boils down to turning over records on international students. But Harvard says it is also about the First Amendment.

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