A multi-decade organizing project by the WCTU and ASL and the malapportionment of state legislatures leads to the passage of the 18th Amendment, with support from various factions. Alcohol use goes down, then doesn’t. Congress goes overboard in using criminal law to combat a public health problem, leading to backlash and repeal. The team discusses modern parallels, 21st Amendment jurisprudence, and the danger of infringing on the Forest Service’s intellectual property.