Why was the judiciary act of 1789 needed?

The Judiciary Act of 1789 was necessary to establish the federal judiciary system and define its structure and jurisdiction following the ratification of the U.S. Constitution. It created a framework for the Supreme Court and lower federal courts, addressing the need for a unified legal system to interpret and enforce Federal Laws. This act also helped to clarify the roles of different courts and ensured that federal law took precedence over state laws in certain matters, thereby strengthening the judiciary's role in the new government.