The Desert News had a recent article that began by saying "The U.S. Supreme Court is set to hear arguments Tuesday in a case that
could have implications for states that rely on interstate water
compacts." The case in question concerns a water rights dispute between six western states, and is an excellent example of case that begins and ends in the U.S. Supreme Court, as the Court has original jurisdiction to hear disputes between the states.
If you are reading the words "original jurisdiction" and asking yourself what that means, it is time to go back and review your class notes.