other governments don't have to cooperate

Mexico and other countries could hamper Trump border plans

Lawmakers, experts point out other governments don't have to cooperate
President Donald Trump's plans to seal the U.S.-Mexico border and
conduct mass deportations might soon run into a major roadblock:
Mexico and the countries where the immigrants come from might not
accept some of them back.

Trump on Monday signed an order to revive of the "Remain in Mexico"
policy, which requires asylum-seekers to stay outside the United
States as their claims are processed. But on the front lines of the
U.S.-Mexico border, that requires a degree of cooperation from the
Mexican government, which appears resistant.

Mexico's President Claudia Sheinbaum told reporters Wednesday she has
not agreed to accept non-Mexican migrants seeking asylum in the United
States, and such a move would require Mexico to agree, according to
report in Reuters.

https://rollcall.com/2025/01/24/mexico-and-other-countries-could-hamper-trump-border-plans/