The Braxton County Court v. The State of West Virginia Ex Rel. The State Tax Commissioners case in 1907 revolved around the issue of taxation and its constitutionality under state law. Specifically, it questioned whether a county court could legally challenge the valuation set by tax commissioners on certain public service corporations within their jurisdiction. The Supreme Court ruled that while counties have an interest in ensuring fair taxation for their residents, they do not possess legal standing to contest valuations made by state tax authorities directly through litigation as this would infringe upon the separation of powers between different levels of government established by the Constitution. This decision upheld the authority and discretion granted to state-level entities like tax commissions in determining appropriate values for taxable property.

In the dissenting opinion for Braxton County Court v. The State of West Virginia ex rel. The State Tax Commissioners, Justice Harlan disagreed with the majority's interpretation of the tax laws in question. He argued that these laws were not intended to apply to county courts and their financial operations, which he believed should be considered separate from other types of public property or funds subject to taxation. Furthermore, he contended that applying such taxes would interfere with the functioning of local government entities and potentially lead to a misuse or misappropriation of public funds meant for specific purposes within those entities' jurisdictions. In essence, his argument was rooted in a belief in maintaining clear distinctions between different levels and branches of government as well as preserving their respective powers and responsibilities under law.