After a federal judge in Los Angeles barred 'roving patrols' by immigration agents in seven California counties, the Trump administration asked the 9th Circuit Court of Appeals to resume operations that lawyers for the state have argued are unconstitutional.

The Trump administration is defending its immigration enforcement methods amidst legal challenges and public criticism. The Department of Homeland Security plans to appeal a federal ruling against using racial profiling in detentions.

As Judge Maame Ewusi-Mensah Frimpong’s ruling rippled across the region, the federal government requested an immediate stay, pending appeal. Here’s what you need to know.