On Monday, July 29, 2019, Attorney General William Barr used a process called certification to issue a decision that closes the door on most asylum-seekers. This rule affects migrants in a particular social group who fear persecution due to family ties. The U.S. law requires asylum-seekers to prove they fear persecution based on race, religion, nationality, political opinion or membership in a particular social group. This new rule will limit the ability of migrants to seek asylum in the United States.