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Index/Topics/US-Mexico border migration

US-Mexico border migration

Migration patterns and trends at the US-Mexico border

Fact-Checks

2 results
Feb 2, 2026

How large are visa‑overstay versus entry‑without‑inspection contributions to U.S. unauthorized population growth since 2015?

A preponderance of recent research finds that have become an equal or larger source of net additions to the unauthorized population than entries without inspection (EWI) since the mid‑2010s, but the e...

Jan 15, 2026

What evidence shows whether IRCA reduced unauthorized migration in the years after 1986?

Scholarly and government analyses converge on a clear but qualified finding: IRCA produced a measurable short-term reduction in unauthorized crossings—driven largely by legalization of existing migran...