Justin Trudeau has served as the prime minister of Canada since 2015. There's a lot to dig into from his years in office — and from his life before, as well. He sits down with organizational psychologist Adam Grant to discuss lessons learned about leadership and how he navigated early struggles with impostor syndrome. He also shares his approach to maintaining motivation in the face of disapproval and criticism, how he encourages people to speak truth to power, why he considered quitting and what keeps him awake at night. (This interview was recorded for the "ReThinking with Adam Grant" podcast.)