In the 1901 case of Travellers' Insurance Company v. Connecticut, the U.S. Supreme Court ruled in favor of Connecticut's right to impose taxes on insurance companies operating within its borders. The Travellers' Insurance Company had argued that it was unconstitutional for states to tax premiums paid by policyholders residing outside their jurisdiction, as this would infringe upon interstate commerce regulations and violate due process rights under the Fourteenth Amendment. However, the court disagreed with these arguments and upheld Connecticut's taxation law. The decision hinged on two key points: firstly, that insurance contracts were not considered articles of commerce; secondly, that a state could legitimately tax an entity conducting business within its boundaries even if some transactions involved out-of-state parties or activities. This ruling affirmed states’ authority over local economic affairs and clarified how constitutional principles applied to emerging forms of commercial activity during a period when America’s economy was rapidly industrializing.

In the dissenting opinion for Travellers' Insurance Company v. Connecticut, 1901, it was argued that the tax imposed by Connecticut on foreign insurance companies violated the Due Process Clause of the Fourteenth Amendment. The dissenting justices believed that this clause protected corporations from being subjected to discriminatory taxation by states in which they do business but are not incorporated. They contended that a state could only impose taxes on businesses within its jurisdiction and taxing out-of-state corporations at higher rates constituted discrimination against interstate commerce. Furthermore, they asserted that such differential treatment hindered free trade among states and contradicted principles of fairness inherent in due process protections. Thus, according to them, Connecticut's law imposing a higher tax rate on foreign insurance companies should have been struck down as unconstitutional.