What she said next sounded barbed, but she meant it as a concession to the enormity of the president’s responsibility, rather than as a reprimand. “I don’t know how you can sleep at night,” she said. Obama replied, “You know what? I don’t really sleep at night, but let me tell you why. It’s not just that I worry about these kids from El Salvador. I also worry about kids in Sudan, and in Yemen, and in other parts of the world. And here’s my problem: we live in a world with nation states. I have borders. You may believe that it’s inherently unfair that a child born in El Salvador has a
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