A U.S. federal judge on Sunday granted an injunction sought by 13 states that were pushing to block Obama administration guidance mandating that transgender students be allowed to use the bathroom of their choice.

Reed O’Connor, a judge for the Northern District of Texas, said in a decision late on Sunday and announced on Monday that the Obama administration did not follow proper procedures when announcing the guidance.

Texas led the lawsuit against the White House, which was filed in late May, charging the Obama administration was working “to turn workplace and educational settings across the country into laboratories for a massive social experiment.”

Texas Attorney General Ken Paxton cheered the decision Monday.

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