A federal judge on Thursday night temporarily blocked one of the Biden administration’s key tools in trying to manage the number of migrants in the custody of U.S. Customs and Border Protection (CPB). ).

The decision came just before Title 42 expires, and administration officials say it will make their jobs more difficult amid the expected influx of immigrants at the U.S.-Mexico border. An appeal is expected.

Here are the key things to know:

Migrant release policy: The plan, released Wednesday, authorized the release of migrants detained by CBP without a court date or, in some cases, released them with conditions. As the number of migrants at the border increases, the Department of Homeland Security (DHS) said its plan will help relieve immense pressure on already overcrowded border facilities. As of Wednesday, more than 28,000 migrants were in Border Patrol custody, increasing capacity.

Previously, the administration released immigrants without a court date when faced with a surge of immigrants after authorities screened them. The plan would have allowed DHS to release immigrants “on parole” on a case-by-case basis and require them to report to Immigration and Customs Enforcement.

Florida continues: Florida sued to end the policy, and U.S. District Judge T. Kent Wetherell agreed to block the plan for two weeks. Wetherell, an appointee for former President Donald Trump, said the administration’s explanation for why its policy was unveiled on Wednesday, when the end of Title 42 had been expected for months, was missing. He also said the Biden administration was simply unprepared.

How did the administration react? Homeland Security Secretary Alejandro Mayorkas, speaking on “CNN This Morning,” called the decision “very damaging” and said the administration was considering its options.

Assistant Secretary for Border Policy and Immigration Blas Nuñez-Neto said the decision “will result in dangerous overcrowding at CBP facilities and compromise our ability to effectively process and deport migrants, creating the risk of create unsafe conditions for Border Patrol agents as well as non-citizens in our custody.”

Following? Wetherell’s decision will stall the policy for two weeks. A preliminary injunction hearing is scheduled for May 19.