Former prime minister Pierre Trudeau shows how tall his eldest son Justin has grown in relation to himself during the seventh inning stretch at the Montreal Expos game in Montreal on April 20, 1987. Justin Trudeau may seem to be following in dad's footsteps as he prepares to seek the Liberal leadership, but he's really heading down a vastly different path into unknown territory. (Paul Chiasson / THE CANADIAN PRESS)
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