"the most important labor law case the court has considered in decades"

  Who Is Behind the National Right to Work Committee and its Anti-Union Crusade?

"... If the court follows National Right to Work's lead, every state in the country would essentially turn into an anti-union "right to work" state, which would be a significant blow to public sector unions' collective bargaining efforts and also complicate thousands of existing contracts..."

Reference: www.prwatch.org