Challenges over cross-border shootings of Mexican teens by U.S. border patrol agents are again before the Supreme Court, which confronts the issue amid tension over Trump administration immigration policies.

The justices could announce as early as Monday whether they’ll hear the cases, which stem from shootings along the borders of Texas and Arizona. Complaints say the victims weren’t doing anything wrong when shot, while at least one of the border agents say they were targeted by rock throwers.

The cases come to the court as lower federal courts begin to grapple with lawsuits over President Donald Trump’s politically charged declaration...