Katrina Armstrong is leaving the post a week after the university agreed to a list of demands from the White House.

The board late last week unexpectedly elevated one of its two co-chairs, Claire Shipman, as acting president.  While not unheard of, experts said it is unusual for a trustee to take the helm of a

Columbia University signaled on Wednesday that it would comply with the Trump administration's demands in return for restoring $400 million in federal funding, saying it would "engage in constructive dialogue with our federal regulators.