Thanks goes to commenter Matt for letting me know about a new bill introduced in Wyoming [PDF]:
AN ACT relating to firearms; providing that any federal law which attempts to ban a semi-automatic firearm or to limit the size of a magazine of a firearm or other limitation on firearms in this state shall be unenforceable in Wyoming; providing a penalty; and providing for an effective date.
I would like to see this bill pass just to know that there is one state in the Union that still has a spine. Since the Civil War the individuals states have been reluctant to stand up to the federal state. They have good cause since the last time they stood up they were invaded and hundreds of thousands of people ended up dead. Still, it would be nice to see a few monkey wrenches tossed into the federal state’s machinery.