Final answer:
The federal judiciary has been revised to handle a broader scope of cases and evolve with societal changes, while maintaining an independent and balanced power structure within the U.S. government.
Step-by-step explanation:
The federal judiciary has undergone revisions and updates primarily to address the evolving nature of law and society. Essentially, this ensures that it can adequately handle a wider scope of federal questions including constitutional issues and matters of federal law.
Key to the judiciary's operations are the three tiers of federal courts: district (or trial) court, circuit courts (or U.S. courts of appeals), and the U.S. Supreme Court. Their roles have expanded over time from a limited scope outlined in Article III of the Constitution, especially the district courts which initially had limited jurisdiction.
The system has aimed to ensure that the judiciary acts with logic and consistency, adhering to the principle of precedent to maintain legitimacy.
Such changes are also reflective of a structural balance of power and checks implemented by Congress, which can alter federal court structures, jurisdictions, and confirm judicial appointments. Importantly, to maintain the independence of the judiciary, federal judges are appointed for life terms, as per Article III, to serve without undue political influence.
Moreover, Congress has periodically made adjustments to reflect diversity goals, striving towards a judiciary that includes a mix of genders, races, and ethnicities. Diversity within the judiciary has evidently increased, but there still remains an imbalance in comparison to the demographics of the overall population.