Robert H. Jackson, Packard Motor Car Company v. National Labor Relations Board…
“ Since what Congress wrote is consistent with a restriction of the Act to workingmen and laborers, I would leave its extension over supervisory employees to Congress.I have used the terms foremen and supervisory employees synonymously. But it is not the label which is important; it is whether the employees in question represent or act for management on labor policy matters. Thus one might be a supervisory employee without representing management in those respects. And those who are called foremen may perform duties not substantially different from those of skilled laborers. ”
