Last month’s Liberal policy convention in Montreal was more about convening than policy: the corridors of the Palais des Congrès were packed with 4,500 delegates networking away, while the policy sessions were sparsely attended. I wandered the halls to eavesdrop on gossip, attending a few policy sessions. One panel impressed me: under the title “Building Canada Strong,” the speakers were Finance Minister François-Philippe Champagne, Industry Minister Mélanie Joly,...