U.S. universities struggle to calm campuses torn by the Gaza war.

Administrators at some of the most influential American universities — including New York University, Yale and Columbia — were struggling, and largely failing, on Monday to calm campuses torn by the war in Gaza.

During the turmoil on Monday, which coincided with the start of Passover, protesters called on their universities to become less financially tied to Israel and its arms suppliers. Many Jewish students agonized anew over some protests and chants that veered into antisemitism, and feared again for their safety.

Some faculty members denounced clampdowns on peaceful protests and warned that academia’s mission to promote open debate felt imperiled. Alumni and donors raged.

And from Congress, there were calls for the resignation of Columbia’s president, Nemat Shafik, from some of the same lawmakers Dr. Shafik tried to pacify last week with words and tactics that inflamed her own campus.