The Seattle Times editorial page called on the Supreme Court to side with the state against the Washington Education Association's illegal practices.
Is it enough if the union tells a worker it is taking his money unless he says no? Or does consent require that he say yes? The first is called "opt-out," because he is assumed to be in the group unless he goes out. The second is called "opt-in," because he is assumed to be out of the group unless he comes in.
In a union shop, the individuals start as members of a group. They are in unless they opt out. But this case is about people who already did opt out.
Common sense says they are out unless they opt in. And that means the court should side with the state.