On Thursday, a federal appeals court in San Francisco upheld a lower court order to block Trump's efforts to end deportation protections for undocumented immigrants who came to the U.S. as children.

Why it matters: It's been more than a year since then-Attorney General Jeff Sessions ended DACA, but various court injunctions have kept the program up and running until the Supreme Court weighs in. The Justice Department petitioned the Supreme Court earlier this week to intervene in the case in an effort to prevent it from making its way through the lower courts.