Don't you mean the "Right to work for less"
http://www.epi.org/publication/datazone_rtw_index/
http://www.epi.org/publication/bp299/
http://mediamatters.org/research/2012/12/12/myths-and-facts-about-right-to-work-laws/191810
Let's not forget that the law this court case is trying to overturn was declared Constitutional in 9-0 ruling by the US Supreme Court in 1977. And that was also a conservative court.
Besides, isn't it the Right that is always saying that there is no such thing as a free lunch? Then how is it that people who benefit from working under a union contract thinks that they should be exempt from supporting that same union who got them those contractually protected benefits?

OCU