"... in which the justices will consider whether an Illinois law allowing public-sector unions to charge nonmembers for collective-bargaining activities violates the First Amendment," SCOTUSblog notes, pointing us to various previews (so go there for the links). Excerpt:

At Reuters, Robert Iafolla and Lawrence Hurley report that “[t]aking away mandatory agency fees could have profound implications for public-sector union coffers.” For The Wall Street Journal, Jess Bravin reports that although “[a]ttitudes about the value of public-sector unions underlie the case,” “[t]he specific legal question before the court … is more abstract.”... For The New York Times, Noam Scheiber and Kenneth Vogel report that “[t]he case illustrates the cohesiveness with which conservative philanthropists have taken on the unions in recent decades.”...

The editorial board of The Wall Street Journal maintains that a ruling for Mark Janus “wouldn’t be a death blow to government unions, though they might have to prioritize resources and reduce political spending.” At The Nation, David Cole and Amanda Shanor argue that “[t]he First Amendment protects the right to speech, but not the right to get something for nothing.”...

This case will decide whether public-sector workers represented by a union can be required to pay agency fees. Janus argues that requiring public-sector workers to pay agency fees constitutes compelled speech and association, imposing undue restrictions on workers’ First Amendment rights. The American Federation of State, County, and Municipal Employees, Council 31 (“AFSCME”) argues that imposing agency fees on all workers allows unions to appropriately and fairly represent all workers’ interests, which unions are legally required to do. This issue affects every dues-paying, public sector worker. Accordingly, this case will impact the way unions organize and represent public-sector workers.