The Biden administration has declined to appeal a decision from last week that blocks a key Department of Homeland Security program that has helped the agency relieve migrant congestion at the U.S. southern border.

U.S. District Judge Kent Wetherell II, a Florida-based judge appointed by former President Donald Trump, issued the 109-page opinion last week, blaming President Joe Biden for the country’s border crisis and giving the government a week to appeal — a deadline that passed on Wednesday.

The parole program, called “parole + ATD,” has allowed the Department of Homeland Security to release tens of thousands of migrants into the country while they await immigration proceedings. The Department will now have to provide migrants full “Notices to Appear” instead of resorting to other alternatives to detention.Immigration activists called on the administration to appeal the ruling, warning that the elimination of the policy could lead to overcrowding at border crossings and risk overwhelming U.S. border patrol.

Department of Homeland Security officials declined to comment on the decision. But agency statistics show that use of the program has dropped substantially over the past year, down from over 130,000 cases being handled through the program to just 28 in February of this year.

The decision comes after a four-day bench trial in Pensacola sparked by a lawsuit filed by Florida Attorney General Ashley Moody against the Biden administration in 2021. It is a victory for Moody and Gov. Ron DeSantis, who has made immigration a key part of his platform as he eyes a potential run for president in 2024.

In the case, the state argued that under the Biden administration, the Department of Homeland Security changed its policies and “leveraged” the parole program to release thousands of migrants into the community without initiating removal proceedings.

“Border Patrol Chief Raul Ortiz testified that, under the prior (Trump) administration, DHS only allowed the release of applicants for admission at the Southwest Border under ‘very exigent circumstances,’” attorneys with the state argued.Under the Biden administration, Ortiz testified, many migrants are released before it can be determined whether there is a credible fear of persecution, which is a screening procedure to determine whether an individual would fall under the category of asylum-seeker.