Than how can a law legalizing marijuana cause the federal government pause in enforcing federal law in Colorado and Washington.
They could but why haven't they? Could we expect the US government to also not enforce federal law in states refusing to recognize future federal gun laws. Are there previous cases where state passed laws with additional protection of rights was considered unconstitutional?
According to the primer I read, where in the primer does it mention that expanded protection under one of the Bill of Rights would contradict Federal law which gives more restriction and not more freedom.
The part in the primer on Federal law brought up examples of where state laws passed which contained restrictions going beyond federal restrictions.
More specifically the Kentucky bill, puts a penalty on its own law enforcement if they aid federal agencies in the execution of any new laws (after January 2013). Wouldn't it be perfectly constitutional for a state to exercise authority over its own law enforcement?