"Under the Constitution, Congress has the power to regulate commerce among the states. From 1887-1937, the Supreme Court narrowly interpreted the Commerce Clause and struck down numerous federal laws, such as those regulating the mining and manufacturing industries. Since then, the Court has permitted wide-ranging Congressional legislation, including child labor laws and civil rights statutes prohibiting racial discrimination in places of public accomodations. "
(source)http://supreme.lp.findlaw.com/documents/constitution.html
In other words, this only started happening during the reign of everyone's favorite Potentate, Frankin Delano Roosevelt. But I suppose that he is another of your idols, he and his "packed" Supreme Court, huh? But he and the Congress sure did take this country for a fine ride using the commerce clause. Are you SURE you want to keep going there?
Sorry, you got an F.
Try the extra credit question.