Tom C. Clark,
United States v. Five Gambling Devices…
“ The Court also has on several occasions stated that the commerce power 'extends to those activities intrastate which so affect interstate commerce or the exercise of the power of Congress over it as to make regulation of them appropriate means to the attainment of a legitimate end, the exercise of the granted power of Congress to regulate interstate Commerce.' [6] I think it may accurately be said that every sale of slot machines affects the exercise of the power of Congress over commerce, in view of the elusive nature of the object whose interstate shipment is being controlled. ”
