The Supreme Court's jurisdiction primarily includes cases of constitutional importance. While it does have the authority to hear a variety of cases, including those involving federal law, disputes between states, and appeals from lower courts, its main role often centers around interpreting the Constitution and addressing issues related to constitutional rights and principles.
It's also important to note that the Supreme Court does not typically get involved in criminal cases unless there is a significant constitutional question at stake. Cases between citizens and companies are usually handled by lower courts unless they involve substantial federal questions or are of significant national importance.