The Biden administration had been on track to end the public health authority, known as Title 42, on May 23, a decision that has been criticized by Republicans and Democrats alike.

Monday’s order from Judge Robert Summerhays is unlikely to change the situation on the ground, given that the public health authority remains in place, but it may throw a wrench in the administration’s plans moving forward.

More than 20 states had asked the court to block the administration from ending Title 42 and last week asked the court to immediately intervene. The Justice Department, which opposed the request, did not immediately respond for comment.

“The Court discussed the Motion for Temporary Restraining Order [ECF No. 24] filed by Plaintiffs. For the reasons stated on the record, the Court announced its intent to grant the motion. The parties will confer regarding the specific terms to be contained in the Temporary Restraining Order and attempt to reach agreement,” Summerhays wrote Monday.

“We applaud the Court for approving our request for a Temporary Restraining Order to keep Title 42 in place,” said Arizona Attorney General Mark Brnovich in a statement. “The Biden administration cannot continue in flagrant disregard for existing laws and required administrative procedures.”

“In a lawsuit originally filed by Missouri, Louisiana, and Arizona, our Office just obtained a temporary restraining order to keep Title 42 in place. This is a huge victory for border security, but the fight continues on,” Missouri Attorney General Eric Schmitt tweeted on Monday.

Texas filed a separate case also seeking to block the end of Title 42. A federal judge in Texas has yet to rule on that case.

This story has been updated with additional details.