The design of the US Constitution gives equal importance to each of the three branches of government. At least in a formal sense, no branch is higher than any other. However, if Congress can act with unity, through the cooperation of the different political parties, it actually has the greatest power of the 3 branches.
The Supreme Court has been the highest level in all the courts in the government.
The Judicial Branch
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The Judicial Branch has judicial authority which is the Supreme court.
Supreme Court
supreme court
The Supreme Court.
The Supreme Court holds the highest jurisdiction in the Judicial Branch of government.
Judicial branch Supreme court
The United States Supreme Court is the highest part of the Judiciary of the United States Government
The US government was specifically set up so that no branch was "higher" than any other.
The President, because he is the highest rank of the Executive Branch. So the answer is the President or the Executive branch.