Justin Trudeau has acknowledged it was the burgeoning calls from his caucus that ultimately convinced him it was time to step down. What is his legacy as prime minister? And does his departure give the Liberals a chance to refresh the brand before the next election? We ask: Tonda MacCharles, parliamentary bureau reporter for the Toronto Star; Jeffrey Simpson, for more than three decades, a national affairs columnist with the Globe and Mail; and Ontario's 25th premier Kathleen Wynne, who now teaches public policy at Victoria University and Trinity College at the University of Toronto.

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