Here’s the case:

Issue: (1) May a state, consistent with the First and Fourteenth Amendments, condition employment on the payment of a special union assessment intended solely for political and ideological expenditures without first providing a notice that includes information about that assessment and provides an opportunity to object to its exaction? (2) May a state, consistent with the First and Fourteenth Amendments, condition continued public employment on the payment of union agency fees for purposes of financing political expenditures for ballot measures?

Plain English Issue: Whether a state can require its employees to pay a special union fee that will be spent for political purposes without first giving the employees information about the fee and a chance to object to it.

Read the full ruling here, even Ginsburg ruled against it.

“the First Amendment does not permit a union to extract a loan from unwilling nonmembers”