The Arizona Republic columnist E.J. Montini, notes that the measure, if constitutional, would allow the state to secede "without officially doing so."
In every legislative session in every state throughout the land there are proposals like this, usually made by a few fringe members who know their proposal has no chance but file it anyway to serve some personal or political agenda.
In this instance, legislators here -- who claim to be strict constitutionalists -- seem fairly willing to ignore what is commonly called the "supremacy clause" of the U.S. Constitution (as well as the Fourteenth Amendment), and which more or less say that federal law supersedes state law.
A state or a person can challenge such laws in court. But a state can't on its own simply declare a federal law to be unconstitutional.
The "wacky" measure, however, is being pushed by the state Senate President Russell Pearce, "the most powerful person in state government," Montini notes. That makes the matter, he writes, "much less of a laughing matter."