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Index/Topics/U.S.-Mexico border operations

U.S.-Mexico border operations

Operational changes at the U.S.-Mexico border, including increased repatriations and changes in logging arrivals

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Jan 29, 2026
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What share of the increase in the U.S. undocumented population since 2021 is due to visa overstays versus border crossings?

The balance of evidence in the reporting shows that were the dominant source of new unauthorized residents for many years before 2021, but the post‑2021 surge undocumented population reflects an unusu...