A union may not adopt rules which in their effect discourage or paralyze any opposition to the incumbent officers. Therefore, it would not be a reasonable qualification to require members to file a declaration of candidacy several months in advance of the nomination meeting since such a requirement would have such effect and ``serves no reasonable purpose which cannot otherwise be satisfied without resort to this procedure.'' \31\---------------------------------------------------------------------------
\31\ Wirtz v. Local 30, IUOE, 242 F. Supp. 631 (S.D. N.Y. 1965) reversed as moot 366 F.2d 438 (C.A. 2, 1966), reh. den. 366 F.2d 438.---------------------------------------------------------------------------