The constitution establishes Supreme court and Inferior court.
Step-by-step explanation:
Article III of the constitution of the United States of America states that the judicial power of the United States of America should be divided among two courts: one is the supreme court and the other are the inferior courts which might be organised from time to time by the congress.
The supreme court will deal with all the matters of the country which are very important and the inferior courts will address the matters which are not so important and do not need to go the supreme courts.