Negotiations in the U.S. Senate over a comprehensive crypto market structure bill are anticipated to continue into January, as lawmakers grapple with unresolved issues. Key points of contention include ethics rules, stablecoin yield regulations, the extent of the SEC's authority, and oversight of decentralized finance (DeFi). The bill aims to address liquidity in crypto markets and counter terrorism financing, while also defining token classifications and regulatory roles. Active discussions are ongoing, with a committee markup expected soon.