As codified in law with the 2nd Amendment, the People did not delegate the power to regulate or control the ownership of firearms to the federal government. And, as the 10th Amendment makes clear, all powers not delegated to the federal government are reserved to the States or to the People themselves.
State legislation to nullify federal gun laws or regulations focus on this basic and essential principle, and propose to make state law that the federal government is effectively banned from such regulations and laws within the state.
Legend: Blue – Introduced. Yellow – Passed one or more houses.
Red – Became Law. Black – Failed Vote.