California v. Zook

My brother Burton has set forth in convincing detail how the regulation of “travel bureaus” for arranging transportation of passengers by motor carriers engaged in interstate commerce was taken over by federal authority, after experience had disclosed the inadequacy of State regulation. What I have to say only serves to emphasize my agreement with his conclusion.

In California v. Thompson, 313 U. S. 109, this Court recognized that positive intervention of Congress was required to displace the reserve power of the State to promote safety and honesty in the business of arranging for motor…