What is the ‘Remain in Mexico’ policy and why does it matter?

This week, the Supreme Court heard oral arguments in Biden v. Texas, a case revolving around the controversial “Remain in Mexico” policy. Justices are expected to issue a ruling this summer. 

Here’s what you need to know about the policy and the surrounding debate:

What is the ‘Remain in Mexico’ policy?

The “Remain in Mexico” policy is officially known as the migrant protection protocols. First implemented by the Trump administration in January 2019, the protocols allow the United States government to return non-Mexican asylum-seekers (who entered the U.S. via the southern...