Theodore Voorhees, who served as Chair of the ABA Antitrust Section in 2012-2013, is a senior antitrust advisor and litigator in the firm's Washington, DC office representing clients in the e-commerce, chemicals, outdoor sports equipment and apparel, food and beverage and agricultural commodities industries, among others. Much of Mr. Voorhees' antitrust advisory work focuses on pricing and distribution arrangements in the United States, and counseling trade associations on antitrust compliance matters.

On consumer protection matters, Mr. Voorhees has represented clients in proceedings before the Federal Trade Commission on advertising and marketing matters and before the Consumer Product Safety Commission on product safety matters. He has advised clients on advertising substantiation and the legal issues posed by the emerging field of neuromarketing.