The Wall St. Journal has a column written by former Judge Andrew Napolitano.  The column begins:

Last week, I asked South Carolina Congressman James Clyburn, the third-ranking Democrat in the House of Representatives, where in the Constitution it authorizes the federal government to regulate the delivery of health care. He replied: “There’s nothing in the Constitution that says that the federal government has anything to do with most of the stuff we do.” Then he shot back: “How about [you] show me where in the Constitution it prohibits the federal government from doing this?”

Rep. Clyburn, like many of his colleagues, seems to have conveniently forgotten that the federal government has only specific enumerated powers. He also seems to have overlooked the Ninth and 10th Amendments, which limit Congress’s powers only to those granted in the Constitution.