5 – Rule of law - a concise summary of the main precedent established.

5 – Rule of law - a concise summary of the main precedent established.                     

In this case, under the Supremacy Clause, pursuant to the Controlled Substance Act, of which lists Marijuana as a Schedule 1 drug, federal government(congress) may regulate such Cultivation, and usage of Marijuana on the local level because it affects the national marijuana market(commerce) even if they are purely local activities performed by respondents.