The U.S. Constitution does not grant the federal government power to regulate personal liberty such as the right to keep and bear arms. All treaties made must be made in pursuance of the Constitution and voids as illegal the U.N. Arms treaty.
In 2008, most accurately, the U.S. Supreme Court declared all branches bound by the Second Amendment’s text, history and tradition. The introduction of the BOR proposals set First and Second Amendment protection levels, Madison noting “they would be excepting out of the grant of power to government those cases where government ought not to act.”
In the U.S. there is no greater authority than the people who retain the ultimate power of law enforcement themselves. The preamble of the Second Amendment made clear one purpose why the operative clause was so important.
Madison’s friend Tenche Coxx penned the first exposition of what was to become the Second Amendment. “As civil rulers, not having their duty to the people duly before them, may attempt to tyrannize and as the military forces [and other armed bodies] which must be occasionally raised to defend our country might pervert their power to the injury of their fellow citizens, the people [not the states] are confirmed in the next article the right to keep and bear their private arms”.