Which body has the authority to interpret the Constitution?

The Supreme Court has the authority to interpret the Constitution as it is the highest court in the United States and has the final say on legal disputes involving constitutional law. This power, known as judicial review, allows the Court to evaluate laws and government actions to ensure they comply with the Constitution. This role is vital for maintaining the rule of law and protecting the rights of individuals against potential government overreach.

The significance of the Supreme Court's role stems from its ability to shape the understanding and application of constitutional principles through landmark decisions that set legal precedents. This function helps to ensure that changes in law and policy align with the Constitution's fundamental values and rights.

In contrast, other bodies like the Presidency and the Senate do not possess the authority to interpret constitutional law in the way that the Supreme Court does. The presidency is primarily responsible for enforcing laws while the Senate is a legislative body focused on creating laws. State legislatures also do not have the ability to interpret the Constitution at the federal level; their role is limited to state laws and constitutions.