“I want to say something,” Jeffrey S. Wiesenfeld said. “The question is offensive. Before you even finish.”

Mr. Wiesenfeld is the City University of New York trustee who rose this week at a board meeting to block an honorary degree to the playwright Tony Kushner, declaring him an “extremist” opponent and critic of Israel.

It was a startling development for a board that appeared to be on the verge of rubber-stamping a bundle of honorary degrees proposed by the colleges within the university, including one for Mr. Kushner from the John Jay College of Criminal Justice.

Mr. Kushner was not present, and fragments of his views — which are complicated, passionate, critical — were balled up into a few pellets by Mr. Wiesenfeld, who gave a 900-word speech that was mostly devoted to other figures who he felt were radically hostile to Israel. He quoted about 75 words that he said showed that Mr. Kushner’s thinking was beyond the pale.