Answer:
The government body that is best matched to its role regarding the law is the Supreme Court, which interprets constitutional law.
Explanation:
The Supreme Court of the United States is the highest court of justice of the Nation, as well as the only one created directly and explicitly by the Constitution of the United States.
Among its various functions (it has original and derived competence - by appeal - in a variety of cases), it is the organ of the federal government responsible for the final interpretation of the Constitution of the United States, that is, it establishes the scope of its provisions and controls its compliance through the Judicial Review of the acts of the Executive Branch and the laws emanating from the Legislative Branch. This task of Judicial Review is given by the same Court through the ruling in Marbury v. Madison of 1803.
