Elon Musk needs no introduction. The world’s richest person, he's a divisive figure, a villain to some, a genius to others. Like many powerful billionaires, he also finds himself willing and able to affect policy, even amid a war. Our colleague Walter Isaacson spent two years shadowing Musk. The result is a 670-page biography that’s certainly making waves, as Walter and Christiane discussed when they sat down in New York.

Also on today’s show: #MeToo Founder Tarana Burke & Mariam Mangera, Project Coordinator of the National Shelter Movement of South Africa; New Yorker staff writer Susan Glasser

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Walter Isaacson on his new book, ‘Elon Musk’