Changes in US Immigration Policy Since 9/11
April 27, 2026 at 04:00
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✦ AI Summary
- Research outlines state and local immigration policies post-9/11
- Highlights shifts in legislation between 2000 and 2021
- Examines the impact of preemption on sanctuary laws
A recent study provides an in-depth analysis of the evolving U.S. immigration policy landscape, tracking changes from 2000 to 2021. Researchers have mapped state and local sanctuary and anti-sanctuary policies to illustrate significant trends in immigration legislation.
This dataset reveals key developments such as "punitive" preemption strategies, where state governments enact laws that counteract the federal administration's policies. Additionally, it highlights how conservative states leverage preemption to influence liberal localities.
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