How is the matter of federal court jurisdiction a reflection of federalism in the united states

This is quite a complex question. In the USA, the Constitution is not precise about the scope of powers and duties of the different layers and branches of government. It was not until the tenure of John James Marshall, a Federalist judge who served at the SCOTUS between 1801 and 1835, that this complex legal question was clarified during the Marbury v. Madison case.

This case established the principle of Judicial Review, by which the judiciary, one of the three branches of government reviews the actions and/or laws or decrees passed by the other two powers. This means that in terms of Constitutionality, the courts have jurisdiction over the other two branches of government. This is part of the system of Checks and Balances.

according to greek mythology, persephone, the queen of the underworld, was the daughter of zeus and demeter, the goddess of harvest and fertility. she was also called kore, which means "maiden" and grew up to be a lovely girl attracting the attention of many gods.

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