In a 6-3 decision along partisan lines, the Supreme Court issued its opinion in McLaughlin Chiropractic Associates, inc. v. McKesson Corp.  While the decision may potentially have sweeping changes to how district courts interpret agency guidance in general, it also has practical short-term impacts on pending and future consumer protection litigation. McKesson Corporation, a healthcare company, sent unsolicited fax advertisements through a subsidiary in 2009 and 2010 to medical practices in an...