The amicus brief will demonstrate that “the elimination of funding at Harvard negatively impacts the entire ecosystem” of higher education.

A federal judge has blocked U.S. President Donald Trump's proclamation restricting new internation students to Harvard University. The ruling prevents enforcement while the case proceeds, and also extends protection for Harvard's Student and Exchange Visitor Program certification.

A group of 18 leading US research universities, including Princeton, MIT, Caltech and Johns Hopkins, asked a federal judge for permission to file legal arguments in support of Harvard University in its high-stakes showdown with the Trump administration over more than $2 billion in frozen grant money.