De Veau v. Braisted — Opinion of the Court
“ Obviously, the National Labor Relations Act does not exclude every state policy that may in fact restrict the complete freedom of a group of employees to designate 'representatives of their own choosing.' For example, by reason of the National Labor Relations Act a State surely is not forbidden to convict and imprison a defendant in a criminal case merely because he is a union official and therefore could not serve as a bargaining representative. ”
