Charles Evans Hughes, Board of Railroad Commissioners of North Dakota v…
“ A judicial restraint of the enforcement of intrastate rates, although limited to the pendency of proceedings before the Interstate Commerce Commission, is none the less essentially a restraint upon the power of the state to establish rates for its internal commerce, a power the exercise of which in prescribing rates otherwise valid is not subject to interference upon the sole ground of injury to interstate commerce, save as Congress has validly provided. ”
