“The first thing you do is ask, what’s legal?” he said. “What do the lawyers say is possible? I made the decision, within the law, to get information so I can say to myself, ‘I’ve done what it takes to do my duty to protect the American people.’ I can tell you that the information we got saved lives.”

But Bush avoided the sharp tone favored by his former vice president in recent weeks, and went out of his way to stress that he does not want to disparage the new president.

“Nothing I am saying is meant to criticize my successor,” Bush said. “There are plenty of people who have weighed in. Trust me, having seen it firsthand. I didn’t like it when a former president criticized me, so therefore I am not going to criticize my successor. I wish him all the best.”