The Trump administration is cutting another $450 million in federal grants to Harvard University – on top of $2.2 billion already slashed – tightening even further its ideological pressure on America’s oldest and wealthiest university amid a broader battle over control of US college campuses.

Harvard University expanded its lawsuit challenging the Trump administration's moves to cut off billions of dollars in federal funding to the Ivy League school on Tuesday after officials said they are terminating an additional $450 million in grants.

In a new court filing, Harvard revealed the breadth of the Trump administration's campaign against the university.