In the United States v. Davis case of 1913, the Supreme Court ruled on a matter concerning taxation and business operations. The defendant, Jefferson M. Davis, was an agent for several fire insurance companies not incorporated in Kentucky but doing substantial business within the state. He challenged a tax imposed by Kentucky law on foreign corporations conducting business in-state without maintaining an office or agency there. The court held that such taxes were constitutional and did not violate due process rights under the Fourteenth Amendment as claimed by Davis. The ruling established that states could impose taxes on out-of-state businesses operating within their borders even if they didn't maintain physical offices there - provided those businesses had sufficient contacts with the state to justify it (a principle known as "nexus"). This decision has been influential in shaping modern laws regarding interstate commerce and taxation.

In the dissenting opinion for United States v. Davis, Justice Hughes disagreed with the majority's interpretation of the Commerce Clause and its application to insurance business transactions across state lines. He argued that insurance contracts were not articles of commerce in themselves but rather agreements about future events or risks, which did not involve interstate trade directly. According to him, these contracts should be considered as local affairs subject to state regulation instead of federal control under the Commerce Clause. Furthermore, he contended that if Congress could regulate such indirect effects on commerce then it would have virtually unlimited power over all kinds of economic activities within states - a situation contrary to constitutional principles limiting federal authority and preserving states' rights in American federalism.