The judicial branch of the U.S. government is the system of federal courts and judges that interprets laws made by the legislative branch and enforced by the executive branch. At the top of the judicial branch are the nine justices of the Supreme Court, the highest court in the United States.
Federal courts enjoy the sole power to interpret the law, determine the constitutionality of the law, and apply it to individual cases. The courts, like Congress, can compel the production of evidence and testimony through the use of a subpoena.
Mixed economy allows the producers to have freedoms like what to make. In this economy, the government also gets to set reatrictions to protect their citizens. Market would not be appropriate because there are not any constrictions on what can and cannot be made so things like weapons could freely, carelessly be distributed.
Answer
The constitution was deliberately designed to stand the test of time and imposing a difficult formal amendment process that needed supermajorities in both houses of the federal legislature and the states.
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