In the early part of his second term, President Donald Trump has taken action against individuals, law firms, private corporations, media companies and universities he regards as adversaries.

Columbia University's interim president Katrina Armstrong has resigned, returning to her post running the New York school's medical center.

Researchers at Columbia University remain in limbo after the Ivy League institution bowed to the Trump administration’s demands for unprecedented changes in a bid to restore some $400 million in federal funds cut.

U.S. Education Secretary Linda McMahon says Columbia University is “on the right track” to recover federal funding frozen by the Trump administration.

Columbia University agreed to implement a host of policy changes, including overhauling its rules for protests and conducting an immediate review of its Middle Eastern studies department.

A federal judge has ordered Columbia University and Barnard College to refrain from complying with a Republican-led House committee’s demand for student disciplinary records, at least until he holds a hearing next week on a request by Mahmoud Khalil and other students for a temporary restraining order.

Confronted with huge cuts to its federal funding, Columbia University’s leaders face a grim decision: They can yield to the Trump administration’s demands over allegations of antisemitism — ceding extraordinary control to the federal government — or they can fight back, potentially risking even more debilitating cuts in an escalating clash.

A federal judge says a Columbia University student activist's legal challenge of his detention by the U.S. government will be heard in New Jersey rather than New York or Louisiana.

The Trump administration has delivered an extraordinary ultimatum to Columbia University, threatening to permanently end federal funding to the school unless it cedes control of an international studies department and implements sweeping changes to other policies.

A top U.S. Justice Department official says the department is investigating whether Columbia University concealed “illegal aliens” on its campus.