The plunge comes after Trump effectively shut off crossings at official ports of entry for migrants seeking asylum or other forms of entry via the Biden-era CBP One app. Mexico has also been playing a greater role in keeping immigrants passing through the country from reaching the U.S. border.

Border Patrol agents made just over 6,000 arrests in June, according to government figures, a sign that President Trump’s hard-line immigration policies are working to keep people out.

President Trump’s border crackdown has led to the lowest number of migrant crossings in recorded history. Federal agents caught 6,070 migrants crossing the US-Mexico border illegally in June — and none of them were released into the US,