Harvard University was back in court Monday for a major hearing in its funding fight case against the Trump administration, a key step in a battle over restoring more than $2 billion in federal funding for research frozen by the White House this spring.

Lawyers for Harvard will present oral arguments against the Trump administration’s research funding cuts at a federal courthouse in Boston on Monday morning. Here’s what you need to know.

Harvard is suing the Trump administration over a $2.6 billion research funding cut, calling it retaliation for defying federal antisemitism directives—raising concerns about academic independence.