--Boot
Nevada has marijuana completely decriminalize up to 3oz of marijuana this year on the ballot.
From the NY Times
Snip.While states have reduced penalties for some marijuana offenses without interference from the federal government, he said any measure that put a state in the drug business would violate federal law and draw a challenge from the Justice Department.
In general, when state law conflicts with federal law, the federal law takes precedence, giving federal prosecutors the discretion to pursue a case or not. A state-regulated drug operation, Mr. Stroup said, would be too much for the federal government to ignore. end snip.
As you can see, the Feds are doing more than interstate commerce and going after intrastate as well.