I'm not sure that's actually the case. The USSC shot down an Arizona passed immigration referendum years ago saying the Fedgov has sole authority regarding immigration issues. I doubt any Governor would go against that ruling which is basically Constitutional.
That and other issues is why I wish Texas would secede and reform their own nation as they once were. No, there would not be some great bloody civil war. No one has the stomach for that in this day.
Just Texit, who's going to kill Texans? Biteme?, he can barely get out of bed. Willie's HO? Bet she can't even spell secession. Schumer/Pelosi? They don't have the power to mobilize the troops. Sorry, got off topic, but is related.
I am not recommending a law, there is no time for that.
What I suggest is that the governor send the Texas Rangers to wherever the illegals are to be released and stop the release.
I doubt that Biden would want a confrontation but if he does, give it to him.
In Texas I think he could deputize a thousand men or more overnight that would support him.
Well, the Governor should have a right to declare them non-citizens of the state of AZ and deny any state benefits to them. If the feds want to house them, the feds pay for it. If the feds want to give them drivers' licenses, the feds can issue it. If the colonizadors want police, the feds can provide it.