Harvard University has filed a federal lawsuit against the Trump administration, accusing it of violating the Constitution by freezing $2.2 billion in federal funding. The university claims this was a retaliatory move after it refused to comply with federal demands related to campus protests. Harvard says the freeze endangers vital research on childhood cancer, infectious diseases, and veterans’ health. The lawsuit argues that the government failed to establish any reasonable link between its decision and concerns over antisemitism or academic conduct.