I want to know the answer to the following question:
Which ranch applies, interprets, and occasionally overturns both state statutes and regulations?
All the background I'm provided with is that "State laws have dramatically diverged in the centuries since independence, to the extent that the United States cannot be regarded as one legal system as to the majority of types of law traditionally under state control, but must be regarded as 50 separate systems of tort law, family law, property law, contract law, criminal law, and so on.". Is that enough to answer the question?
Answer: no