U.S. District Judge Kathleen Williams said Wednesday following days of testimony about the environmental impacts of the Everglades immigration detention camp that she plans to rule no later than Aug. 21 on a request to temporarily shut it down.

Were she to side with the plaintiffs, it would be a significant blow to the Trump and DeSantis administrations, which have touted the hastily constructed detention center as a successful new tool in the president’s mass-deportation campaign.

Williams, an Obama appointee, is presiding over a lawsuit filed by Friends of the Everglades, the Center for Biological Diversity, Earthjustice and the Miccosukee Tribe alleging the federal government and the state dodged federal environmental regulations.