The judicial branch is one of the three branches of the federal government, and its main job is to interpret and review the laws of the nation. The Constitution provides for a system of federal courts in the Judicial Branch of the government. The judicial branch decides the constitutionality of federal laws and resolves other disputes about federal laws. The Supreme Court of the United States is the highest court in the nation and is part of the judicial branch. The Supreme Court is made up of nine judges called justices who are nominated by the President and confirmed by the Senate. The Supreme Courts main task is to decide cases that may differ from the U.S. Constitution. Once the Supreme Court makes a decision in a case, it can only be changed by a later Supreme Court decision or by changing or amending the Constitution.

The judicial branch also includes lower courts, such as the federal district courts and the Circuit Court of Appeals. The federal district courts try most federal cases, and the Circuit Court of Appeals reviews appealed district court cases. The Supreme Court only accepts cases on special constitutional problems, and its decisions are the final decisions.

The duties of the judicial branch include interpreting the laws, deciding whether a law breaks the rules of the Constitution, and supervising the lower courts. The state judges are elected by the citizens rather than being appointed, and they also run for their office as members of a political party. The Supreme Court has the authority to determine if state laws and actions of state officials, including the Governor, are constitutional. Laws and executive orders cannot be enforced if they violate the state constitution.

In summary, the job of the judicial branch is to interpret and review the laws of the nation, decide the constitutionality of federal laws, and supervise the lower courts. The Supreme Court is the highest court in the nation and is responsible for deciding cases that may differ from the U.S. Constitution.