Checks are okay:
The mandatory nature of the status checks does not inter- fere with the federal immigration scheme. Consultation between fed- eral and state officials is an important feature of the immigration system. In fact, Congress has encouraged the sharing of information about possible immigration violations.
But rest of law falls for preemption — federal law trumps state.
We lost that War. Remember?
Lord knows I am reminded of it every day and even some folks I admire like Mark Levin can't resist Saint Abe