There must not be any campaigning within a polling place and a union may forbid any campaigning within a specified distance of a polling place.
See Hodgson v. UMW, 344 F.Supp. 17 (D.D.C. 1972).
29 C.F.R. §452.111
There must not be any campaigning within a polling place and a union may forbid any campaigning within a specified distance of a polling place.
29 C.F.R. §452.111