Jurisdiction and Procedure of Federal Courts

Key Insight

The jurisdiction of federal courts was determined by two criteria: the nature of the case and the parties involved. Certain parties, regardless of the case, were exclusively judged by federal courts, such as ambassadors (representing national interests) and the Union itself (avoiding judgment by a rival sovereign). Similarly, disputes between individuals from different states or between states themselves were assigned to federal courts to ensure impartiality and maintain the peace of the Union.

Regarding the nature of cases, all questions of maritime law fell under federal jurisdiction due to their connection to international law and the shared, rather than localized, domain of the sea. Crucially, federal courts were also given jurisdiction over 'all cases arising under the laws of the United States.' This meant if a state law contradicted the Constitution (e.g., prohibiting currency circulation) or if disputes arose from federal laws (e.g., import duties), these cases would be tried in federal courts, ensuring consistent interpretation and upholding the Union's limited but sovereign authority.

Federal courts also extended jurisdiction to cases stemming from state laws contrary to the Constitution, such as retroactive criminal laws or laws 'impairing the obligations of contracts.' For example, if a state law infringed on a contractual right, the injured citizen could appeal to federal courts. This 'contract clause' was a powerful indirect check on state sovereignty, allowing the federal judiciary to attack the consequences of state laws without directly destroying them. The genius of the system lay in requiring federal courts to deal only with individuals, even when a state's actions were the underlying cause of the dispute, thereby making the Union's adversary a weak one.