Just An Excuse to Link to My Friend Norman Heath's Blog
An article about the dormant commerce clause and its parallels to the Second Amendment. Norman makes the point that if the crowd that believes that the Second Amendment protects a "right of the states" to organize a militia really believed that, they would be able to show all sorts of evidence that the courts have taken that position. But as this University of Detroit-Mercy Law Review article by Norman points out, the courts have quite emphatically not taken that position.
And don't let the picture on his blog fool you. He's really not a scary person at all!