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Behind Trump’s 1930s, every-man-for-himself rhetoric

Car of Texas migrants, 1937, in California's Coachella Valley. Photo: Dorothea Lange/Resettlement Administration/LIFE via Getty Images

President Trump’s every-man-for-himself foreign policy resembles the world of the 1930s, when Europe was dominated by populist and nationalistic politics and veering toward a catastrophic war, according to the co-author of a new book on geopolitics.

Why it matters: With his assault on institutions, set up seven decades ago to soften the frictions that led to World War II, Trump risks re-igniting the emotions that put nations at each other's throats, says Ivo Daalder, president of the Chicago Council on Global Affairs.