Approaching half of the States have relegalized to some extent, mostly medical, but all are subject to draconian federal laws dealing with Marijuana. This is a good move, and hopefully enough in Congress have the collective wisdom left to pass this. The States do have some protection under the 10th Amendment to the U.S. Constitution, but the “Supremacy clause” (Article 6, Section 2 of the U.S. Constitution) is being used to eliminate the rights of the States to be sovereign.A good definition of this is at: http://legal-dictionary.thefreedictionary.com/Supremacy+Clause. Meanwhile, two Colorado Congresspeople have another plan. http://coloradoindependent.com/126304/colorado-reps-seek-exemption-from-federal-pot-prohibition-laws