Conversation so far:
why does the united states judicial system have an appeal process
The appeal process allows a defendant who is found guilty by a criminal court to appeal the ruling to have the case heard by the Court of Appeals.
how many circuits are there in the district courts
In the federal system, 94 district courts are organized into 12 circuits, or regions. Each circuit has its own Court of Appeals that reviews cases decided in U.S. District Courts.

Question: what is the highest court system in the country
Self-contained rewrite: what is the highest court system in the us