As next week marks the opening of the 2017 term at the high court, Dahlia Lithwick speaks with David Cole, legal director of the American Civil Liberties Union, about some of the cases in this upcoming term, including Trump's travel ban, a civil rights case of gay couples versus those of religious dissenters and more.

Cole also discusses how citizen activism is more alive than he's seen is his lifetime, something he illustrates in his new book, now out in paperback, Engines of Liberty: The Power of Citizen Activists to Make Constitutional Law.

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