The Erie Coal & Coke Corporation v. United States case in 1924 revolved around the issue of whether or not a coal company had to pay taxes on profits made from selling its own mined coal. The Supreme Court ruled that the corporation was indeed liable for these taxes, as it was operating both as a mining and sales entity. The court held that even though the corporation's primary business was mining, it also engaged in selling activities which generated profit and thus should be taxed accordingly under federal law. This decision clarified tax obligations for corporations involved in multiple lines of business operations.

The dissenting opinion in the case of Erie Coal & Coke Corporation v. United States argued that the majority's decision to uphold a federal law regulating child labor was an overreach of congressional power under the Commerce Clause. The dissenters believed that this interpretation expanded Congress' authority too far into areas traditionally regulated by states, such as education and child welfare. They contended that while interstate commerce may be affected indirectly by state laws on these subjects, it does not give Congress a right to regulate them directly. Furthermore, they expressed concern about potential abuses of power if Congress were allowed to use its commerce regulation powers so broadly.