The ongoing controversy over e-cigarettes and youth smoking has hit a proverbial regulatory wall. In September 2018, U.S. Food and Drug Administration (FDA) Commissioner Scott Gottlieb acknowledged “an epidemic of use of e-cigarettes among teens.” On August 8, 2016, the FDA’s “deeming rule,” which regulates electronic smoking devices in the same way it regulates other tobacco products, became effective, resulting in the federal prohibition on sales of e-cigarettes to anyone under the age of 18. Perhaps not a moment too soon.