Congress has the authority to establish federal courts; state legislative bodies establish state courts.
Congress
The authority to set up a system of federal courts was granted to Congress by the U.S. Constitution. Article III of the Constitution establishes the judicial branch and allows Congress to create inferior courts under the Supreme Court. This provision enables Congress to determine the structure and jurisdiction of the federal court system.
no
Veto or approve legislation
The state courts are going to be set up according to the state constitution. Most of them have 3 levels. The local courts, usually set up by county. Then there are appeals courts, typically set up by regions within the state. And then the State has their highest court, normally referred to as the Supreme Court.
Judiciary Act Of 1801 ?!
Interpretation is left up to the Supreme Court and other lower courts. Agencies have no authority to interpret the Constitution.
The authority to overrule state courts.
Jurisdiction
the constitution
Expressed Powers
Constitutional courts