In the ensuing uproar, some on the right have asserted that President Trump was really making a good point, however crudely: Maybe we don’t want immigrants from poor countries, who, they assume, are low-skill immigrants. The administration is known to support a more “skills based” immigration system, and maybe Trump was just, in a clumsy way, trying to articulate that?
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Turning to education, the evidence of positive selection becomes even stronger.