[smsm42]

It's not even given Trump's admin would actually defend the position of turning away green card holders. So far there was only emergency stay which AFAIK does not even require participation from the other side, so we have no idea what position or argument the administration has on the case. The judge (quite correctly) decided to issue an order that causes least harm (not deporting anyone, but not ruling any broader) so I think we'd know on Monday more about admin's position on this.

ACLU of course would argue the whole order is invalid, but I don't think this part would be easy to prove and not likely to get emergency order broad enough, and it probably would take more than 60 days to go through which means challenging this particular order in its entirety may be moot by the time it gets to any sort of trial. If the subsequent policy will match it though it still may have a point.