Yesterday, the United States Supreme Court heard arguments in multiple cases relating to the Trump administration's policy change on DACA, standing for Deferred Action for Childhood Arrivals, an Obama-era program that provided some protections and authorizations for undocumented immigrants who arrived in the United States when they were children.
From Inside Higher Education: "Trump announced plans to wind down the DACA program in September 2017 … However, three different federal courts blocked the Trump administration from ending the DACA program, variously finding that its claim that the program was unlawful was either erroneous or inadequately explained... Much of Tuesday’s hearing focused on the procedural question of whether the decision to end DACA was reviewable by the courts, with the government arguing that it wasn’t."
From the Chronicle of Higher Education: "The main question before the Supreme Court is whether the Trump administration acted arbitrarily and unlawfully when it announced that it would end DACA, which has protected about 700,000 undocumented immigrants from deportation. A decision is expected by the end of June 2020."
A legal analysis of the arguments appears on SCOTUSblog.