Fourteen Democrat attorneys general are backing the Mexican government in a lawsuit against American gun manufacturers. Massachusetts Attorney General Maura Healey on Jan. 31 filed a brief in Mexico v. Smith & Wesson, along with other 13 attorneys general—all Democrats—arguing that the Protection of Lawful Commerce in Arms Act (PLCAA), a federal law, cannot be used to bar gun manufacturers and dealers from being sued under state consumer laws. “We urge the Court to recognize that gun dealers, manufacturers, and distributors may be held accountable under state laws for how they market and sell their products,” Healey said in a statement. In the case of Mexico v. Smith & Wesson before the U.S. District Court for the District of Massachusetts, the Mexican government named gun manufacturers Smith & Wesson, Beretta, Century Arms, Colt, Glock, Ruger, and Barrett. Boston-based arm wholesaler Interstate Arms has also been named as a defendant. Mexico …