Which branch of government regulates bankruptcy?
Congress, the legislative branch, has the power to regulate bankruptcies. Declaring bankruptcy provides legal relief for those who cannot pay their debts.
State government regulates commerce within the states (intrastate commerce), provided the goods and services are used entirely within the state. The Legislative branch (Congress) regulates commerce between the states (interstate commerce), international trade, and trade with Native American nations.
All of them dependent on how these clubs act. The Executive can investigate and arrest them if they violate a law, Congress can pass laws against them IF it is in the national interest, and Judges can convict them if they violate some law. To expand on this, the FDA (an executive branch of government) has taken some interest in, and regulation over organic qualifications, claims, etc.