In Hollingsworth Magniac and Others v. John R. Thompson, the Supreme Court of the United States was asked to decide whether a state court had jurisdiction over an action brought by citizens of one state against citizens of another in which title to land located within the first state was at issue. The plaintiffs argued that under Article III, Section 2 of the U.S Constitution, they were entitled to have their case heard in federal court rather than a state court because it involved parties from different states and therefore fell under diversity jurisdiction. However, after examining both sides’ arguments carefully, Chief Justice Marshall concluded that since all parties resided in the same place where title to land was being disputed - namely Maryland - there could be no diversity between them as required for federal jurisdiction; thus he held that only a Maryland State Court had authority over this matter and dismissed plaintiff's appeal for lack thereof.

In the case of Hollingsworth Magniac and Others v. John R. Thompson, the Supreme Court was asked to decide whether a state court had jurisdiction over a dispute between citizens of different states. The majority opinion held that it did not have such jurisdiction, as this would be in violation of Article III Section 2 Clause 1 of the U.S Constitution which grants exclusive federal judicial power over cases involving citizens from different states or foreign countries. However, Justice McLean dissented from this decision arguing that although Congress has been given authority by the Constitution to regulate certain matters concerning interstate disputes, they cannot take away all powers granted to state courts under their own constitutions and laws without violating those same constitutional provisions which grant them these powers in the first place. He argued further that if Congress were allowed to do so then it could effectively render state governments powerless when dealing with issues within their own borders; something he believed was never intended by our founding fathers who wrote both documents into law for very specific reasons