The Post Master General of the United States v. Early and Others was a Supreme Court case that dealt with the issue of whether or not Congress had the power to establish post offices in states without their consent. The defendants argued that such an act would be unconstitutional, as it violated state sovereignty by allowing federal control over something traditionally left up to individual states. However, Chief Justice John Marshall ruled in favor of Congress’s authority on this matter, stating that while certain powers were reserved for the states under the Constitution, there were also implied powers granted to Congress which allowed them to create post offices within any state they deemed necessary. This ruling established a precedent for future cases involving Congressional authority versus state sovereignty and helped shape our current understanding of how these two entities interact today.

In The Post Master General of the United States v. Early and Others, Chief Justice John Marshall delivered a dissenting opinion in which he argued that the Court should not have dismissed the case without hearing it on its merits. He believed that Congress had given exclusive jurisdiction to federal courts over post office cases, and thus this case was within their purview. Furthermore, he noted that even if there were some ambiguity as to whether or not Congress intended for these types of cases to be heard by federal courts, then it would still be appropriate for them to hear this particular dispute since both parties had agreed upon such an arrangement prior to filing suit. Finally, Marshall contended that dismissing the case without considering its merits could set a dangerous precedent whereby other litigants might attempt similar tactics in order avoid having their disputes adjudicated by federal courts when they are clearly within their jurisdiction.