As Supreme Court expands Trump's immigration power, experts warn of steeper U.S. population decline

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- Supreme Court ruled Thursday that Trump has broad power to deport hundreds of thousands of migrants living legally in the U.S. under temporary protected status, including Haitians and Syrians.
- Supreme Court also ruled this week the administration can block most asylum seekers from entering the country, and Stephen Miller said ending birthright citizenship is next, with a ruling expected as early as next week.
- Census Bureau data shows 2.7 million foreign migrants entered the U.S. in 2024, but experts predict that figure could drop as low as 300,000 this year, and U.S. population growth already halved in 2025 with five states losing population.
- Cato Institute's David Bier warned the U.S. is heading toward a 'demographic cliff' like China, Italy and South Korea, noting most U.S. counties already record more deaths than births and higher birthrates 'are not coming back.'
- Brookings Institution's William Frey said even low-immigration states like Iowa, Kansas, and Nebraska need migrants for any population growth and called the long-term anti-immigration stance 'dangerous.'
- Census Bureau projects that without robust migration, total U.S. population loss by the end of this century could exceed 107 million people.
- Economists cited in the article warn that without migrants, young workers paying into Social Security will fall more rapidly, schools in many areas will close, and the number of young families having children will decline.
Why it matters: With U.S. population growth already halving in 2025 and the Census projecting 107 million fewer Americans by 2100 without robust migration, the rulings strip away the sole demographic escape valve, leaving states like Iowa and Kansas with no source of population growth and accelerating Social Security funding shortfalls.
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