Factory worker signs “dues-checkoff” agreement allowing employer to automatically deduct her union fees, send them to the union. After 2015 Wisconsin right-to-work law bans mandatory union dues, worker asks employer to stop collecting dues. The right-to-work law says employer must comply within 30 days, but the dues agreement the employee signed says the deduction is irrevocable for one year. Seventh Circuit: The state’s 30-day rule violates federal labor law; she must pay the dues for at least a year. Dissent: The Supreme Court precedent the majority relies upon, though it hasn’t been explicitly overruled, is no longer good law.