According to Federalist 78 what is a duty of the judicial branch?

In Federalist No. 78, Alexander Hamilton argues that a key duty of the judicial branch is to interpret laws and ensure they align with the Constitution. The judiciary acts as a check on the legislative and executive branches by protecting individual rights and upholding constitutional principles. Hamilton emphasizes that an independent judiciary is essential for maintaining the rule of law and preventing legislative overreach. Thus, the courts serve as guardians of the Constitution, ensuring that no law contradicts its core tenets.