MONTREAL, QUEBEC — Mark Carney arrived at the Liberal Party convention in April ready to play the hits that had carried him through a triumphant year in office. “Hope isn’t a plan, and nostalgia isn’t a strategy,” he said in his keynote address, a version of a line that the Canadian prime minister has repeated in seemingly every major speech he’s delivered since 2025. “If we stand still during this rupture, we will surrender our future to others…