New book explores four major threats to US democracy

In their new book, “Four Threats: The Recurring Crises of American Democracy,” Suzanne Mettler, professor of government at Cornell University, and Robert Lieberman, professor of political science at Johns Hopkins University, not only assert that history repeats itself – they also identify the underlying causes of democracy destabilization. American democracy has often been fragile, they argue, and today it faces an unprecedented crisis.

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