The answer is yes. The US system is a Federal system. It depends on both states and the National governments to form the Federal Government. The states ratified and created the National government thru the US Constitution. The National Government is obligated by the US Constitution to protect the states and continue the states. Each citizen of the USA is a citizen of a state and the National government. In the USA system (our system) neither the states nor the National government can exist without the other level of government. All levels of government exist by the just consent of the governed (the people).
I think no because the il constitution is just for the state, not the whole u.s.
Constitution, treaties, or Federal Laws
try cases arising under the constitution,federal laws,and treaties
Article lll
Article III of the U.S. Constitution establishes the judicial branch of the federal government and grants federal courts the authority to hear cases involving the Constitution, federal laws, and treaties. It specifically outlines the jurisdiction of federal courts, including cases arising under the Constitution and laws of the United States, as well as treaties made under their authority. This article is fundamental in ensuring that federal courts can interpret and apply the law in these matters.
The Constitution establish a federal system of government for the United States.
federal
provision that states myst not violate the Constitution, federal laws or treaties
try cases arising under the constition ,federal law,and treaties...
Constitution, treaties, or Federal Laws
The US Constitution and any federal laws or treaties passed in accordance with the principles of the Constitution.
The constitution establishes the United States as a Federal Republic.