The US government’s use of a prison in El Salvador as an extra-judicial due-process free black site has been rendered starkly visible by the story of one man they tried to disappear. On this week’s Amicus, Dahlia Lithwick interviews Simon Sandoval-Moshenberg, lawyer for Kilmar Armando Abrego Garcia, a Maryland resident, husband and father, who was illegally deported to El Salvador in March due to what the government admits was an administrative error. Abrego Garcia was abruptly detained by ICE, torn from his family, and sent to a brutal Salvadoran prison despite having legal protections against deportation. The Justice Department now says Abrego Garcia must remain in the notorious CECOT prison in El Salvador. On Friday a district court judge in Maryland ordered his return.

Next, we turn to the Trump administration's disastrous tariffs. Slate's Mark Joseph Stern joins Dahlia to explore the legality of Trump’s latest, inexplicable round of tariffs against the rest of the world, and debate whether the Supreme Court will apply its so-called “major questions doctrine” when a Republican is in the White House.

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Amicus | He Was Deported by Administrative Error. We Talked to His Lawyer.