Charles Evans Hughes, Electric Bond and Share Company v…
“ We need not now determine to what precise extent these defendants are actually engaged in interstate commerce. It is enough that they do have continuous and extensive operations in that commerce, and Congress cannot be denied the power to demand the information which would furnish a guide to the regulation necessary or appropriate in the national interest. Regulation is addressed to practices which appear to need supervision, correction or control. And to determine what regulation is essential or suitable, Congress is entitled to consider and to estimate whatever evils exist. ”
