That Congress in enacting section 14(b) of the National Labor Relations Act authorized the states to adopt "right-to-work" laws banning forms of compulsory unionism otherwise permissable under federal law has never been seriously questioned. In this article the author discusses the more difficult problem of the extent to which section 14(b) does, or should, enable the states to deal with union-security issues irrespective of an elaborate federal regulatory scheme which touches identical or related subject matter.
Stanley D. Henderson,
The Confrontation of Federal Preemption and State Right-to-Work Laws,
1967 Duke Law Journal
Available at: http://scholarship.law.duke.edu/dlj/vol16/iss6/1