Former prime minister Brian Mulroney came to Toronto on Tuesday to celebrate the 25th anniversary of the free trade agreement he negotiated with the United States in 1987. Before his speech, he met with The Globe and Mail’s editorial board. Speaking quietly at first, Mr. Mulroney grew more voluble and emphatic when he talked about his political rivals and his legacy. Otherwise, he was convivial, occasionally self-deprecating. By the end of the hour, he was telling stories like in the old days.