Timothy S. Bishop argues that California's Proposition 12 infringes on the Commerce Clause, while Edwin S. Kneedler supports this view on behalf of the U.S. government. Michael J. Mongan defends the state regulations, asserting they don't violate interstate commerce. Jeffrey A. Lamken emphasizes the ethical standpoint, advocating for animal welfare. The discussion navigates the complex interplay between state laws, morality, and commerce, as the Justices probe the potential extraterritorial effects of the law on pork production across the nation.