Boeing Gets Business, GOP Backing in Battle Against S.C. Union

Boeing Co. got a boost from the National Labor Relations Board in the aircraft maker’s legal challenge to a union’s election victory at its South Carolina plant.

The NLRB on Sept. 7 agreed to accept friend-of-the-court briefs backing Boeing filed by four Republican governors, the U.S. Chamber of Commerce, and a slew of other business groups.

Boeing is fighting the International Association of Machinists’ win in a May 31 union election to represent a small group of technicians at the company’s facility in North Charleston, S.C. Boeing says the Machinists “gerrymandered” the bargaining unit—composed of about 170 of the 7,000 ...