Robert H. Jackson

“ The source of the restraint may be intrastate, as the making of a contract or combination usually is; the application of the restraint may be intrastate, as it often is; but neither matters if the necessary effect is to stifle or restrain commerce among the states. If it is interstate commerce that feels the pinch, it does not matter how local the operation which applies the squeeze.
The manifest purpose and intent of the contract in question was to restrain the jobbers from free choice among stitching contractors on equal terms. The business affected by the restraint is interstate commerce. ”

“ The industry involved is women's sportswear. It is carried on by jobbers who maintain sales offices in New York and engage in nationwide competition for orders, chiefly by means of traveling salesmen who solicit throughout the country. ”

“ Terms relevant to the issue require jobbers to give all of their work to available Association members who are in good standing with the International Ladies' Garment Workers Union, provided such contractors are 'comparable' as to price and quality of work with nonmember contractors having contracts with the same Union. The jobber is to furnish a written order specifying price and is forbidden to receive secret rebates. A jobber can give work to a nonmember only in continuance of an existing relationship. ”