Daniel Croxall (University of the Pacific), Legislative Gifts (2022):
The United States has a strange relationship with alcohol. Alcohol is the only specific subject that can claim two constitutional amendments (the Eighteenth Amendment and the Twenty-first Amendment), and alcohol is one of the most heavily regulated industries in the country. The Twenty-first Amendment left it to the states to regulate the three tiers of the alcohol market: manufacturing, distribution, and retail sales. Of course, disparate laws appeared among the states and created a morass of inconsistency.