Final answer:
Article III of the Constitution gives Congress the power to create inferior courts, which are lower national court systems under the Supreme Court. Congress does not have the power to deem laws unconstitutional or overturn a Supreme Court ruling.
Step-by-step explanation:
Article III of the Constitution gives Congress the power to create inferior courts. This means that Congress has the authority to establish lower national court systems under the Supreme Court. It is important to note that Congress does not have the power to deem laws unconstitutional or overturn a Supreme Court ruling. Only the Supreme Court, through the process of judicial review, has the authority to declare laws unconstitutional. Congress also has the power to create laws, but this is not specifically mentioned in Article III of the Constitution.