Supreme Court delivers multiple blows to organized labor in recent rulings.

The US Supreme Court has made it easier for employers to sue over strikes that cause property destruction, siding with a concrete business in Washington state that sued the union representing its truck drivers after a work stoppage. The 8-1 decision overturned a lower court's ruling that said the lawsuit filed by Glacier Northwest Inc against a local affiliate of the International Brotherhood of Teamsters was preempted by a US law called the National Labor Relations Act. The ruling is likely to cause confusion among lower courts about how preemption under the National Labor Relations Act should apply in future cases and risks erosion of the right to strike.