This is a clear moment of crisis for Americans, says Atlantic senior editor David Frum. “We are living through the most dangerous challenge to the free government of the United States in decades,” he explains in this video. What can people do when Congress refuses to check the president, civil unrest fuels his agenda, and he uses Twitter to stifle dissent? Read more in The Atlantic’s March 2017 cover story, “How to Build an Autocracy.”

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