Why You Can Direct Order Wine in Missouri but not Arkansas

The case of Granholm v. Heald (2005) involves this question: may a state ban direct shipments to consumers from out-of-state wineries while allowing direct shipments to consumers from in-state wineries? The question forces us to consider the ways our national experiment with Prohibition in the 18th Amendment (1919) and its repeal in the 21st Amendment (1933) continues to affect the powers of state governments with respect to alcohol regulation.