Claire Shipman, Columbia University’s new acting president, had called last year's congressional hearings on campus antisemitism "nonsense" in a text to the former university president.

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

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