In re Santa Fe Natural Tobacco Company Marketing, Sales Practices, and Products Liability Litigation, District of New Mexico, Case No. 1:16-md-02695-JB-LF. PW partner Melissa S. Weiner chairs the Executive Committee and PW partner Daniel L. Warshaw serves on the Executive Committee. This class action alleges that defendants’ “natural” and “additive free” claims on their tobacco products were false and misleading to consumers.