Clause of article I, section 8 of the U.S. Constitution that gives Congress power "to regulate commerce"


Commerce Clause - Wikipedia, the free encyclopedia
"Article I, Section 8, Clause 3 of the United States Constitution, known as the Commerce Clause, empowers the United States Congress 'To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes.' ..."


That Mercantilist Commerce Clause, by Sheldon Richman, 11 May 2007
Reviews the paper "The Panda's Thumb: The Modest and Mercantilist:Original Meaning of the Commerce Clause" by Prof. Calvin Johnson
"The Commerce Clause of the U.S. Constitution has been used to justify a wide expansion of government power, from antidiscrimination laws to drug prohibition to a ban on guns near schools. ... Johnson documents that Federalists and Anti-federalists alike feared trade imbalances, the loss of gold and silver, and the importation of luxury goods. They were, at bottom, mercantilists."


Free Trade vs. Protectionism, by Donald J. Boudreaux, 31 Aug 2011
Defines free trade and protectionism, the use of tariffs to implement the latter, and gives Hong Kong and the United States as examples of the benefits of free trade
"One of the reasons for the United States' enormous economic growth over the past two centuries and high standard of living is that we have total free trade within America. There are no tariffs, there are no trade restrictions. If protectionism was such a dandy thing, then you'd think each state could make its citizens wealthier by putting up trade restrictions around the states' borders. They don't do that, fortunately, because the Commerce Clause in the Constitution prohibits such trade restrictions. As a consequence, we have this huge free-trade zone in America ..."

Wheat, Weed, and ObamaCare: How the Commerce Clause Made Congress All-Powerful, by Erwin Chemerinsky, John Eastman, Reason TV, 25 Aug 2010
Professors John Eastman, former Dean, Chapman University Law School and Erwin Chemerinsky, Dean, UC Irvine School of Law, express contrasting opinions on the Commerce Clause