“人民对美好生活的向往，就是我们的奋斗目标。”
美國總統特朗普（Donald Trump，川普）在競選總統期間，曾承諾將會實施更嚴厲的移民政策和更嚴格的執法措施，他曾經明確表示：「上任第一天，我就會展開美國史上最大規模的罪犯驅逐行動。」
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Negative net migration hasn’t definitively happened in the U.S. for almost a century, not since the Great Depression. The U.S. native-born population is also in free fall, well below the replacement rate needed to maintain population numbers in the long run. With fewer immigrant arrivals already dealing a blow to the workforce, the shrinkage of the American taxpayer base is set to further widen the country’s deficit and hurt its prospects for economic growth.