They haven't even decided that. They refused to overturn the 5th Circuit's stay of the district court's order while the case is on appeal to the 5th Circuit. The 5th Circuit hasn't heard the case yet, much less ruled upon it. Once the 5th Circuit rules, the Supreme Court could grant cert. (Assuming the 5th Circuit reverses the district court, we know that there are 4 votes to grant cert, although the liberal may not vote to hear the case iof they think there will be a 5-4 affirmance.)
That, of course, is what I meant, but I’d already gone on too long to knarf.