The Supreme Court The Supreme Court is apart of the judicial branch. As you can probably tell since it does Supreme, they are the highest federal court for our nation. They make sure that laws are being practiced and that everything that goes on in court cases and new laws is constitutional. They also have the power to check the other two branches to make sure they aren't going overboard. The Supreme Court has 9 justices, who are the people that help make decisions and make sure the other two branches in the government are being constitutional when making laws or when people want to know if something is within their rights or not. The Beginning While the Supreme Court was established in the constitution it wasn't of any use until 1803 when Marbury v. Madison came into play It is one of the most known cases and is seen has the case that really made the Judicial branch have power. Later on, they decided that there should be 9 justices and they have not changed that number ever...