What are the key differences between federal and state cases?

Federal cases are heard in federal courts and involve violations of Federal Laws or the U.S. Constitution, while state cases are heard in state courts and involve violations of state laws. Federal cases typically involve issues that affect the entire country, while state cases are more localized and deal with issues specific to that state. Additionally, federal cases can be appealed to higher federal courts, while state cases can be appealed to higher state courts.