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Trump-era border wall construction

Construction of a steel bollard wall along the US-Mexico border during the Trump administration

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Jan 8, 2026
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How has Congress attempted to reform the National Emergencies Act since 1976?

Since enacting the National Emergencies Act (NEA) in 1976 to reclaim congressional oversight over long‑running presidential emergency powers, Congress has periodically revisited the law with proposals...

Jan 19, 2026

What is the environmental impact of the Trump border wall on wildlife habitats and ecosystems?

The Trump-era border wall and its subsequent expansions have produced measurable and multi‑faceted environmental harm across the U.S.–Mexico borderlands, including habitat fragmentation, disruption of...