🚨NEW: Witnesses for Tuesday's @FinancialCmte market structure hearing will include former @CFTC chair Rostin Behnam, plus: 📌@jamesrathmell, GC at @HaunVentures 📌@alexlmiller, CEO of @hirosystems 📌Dan Davis, former CFTC GC 📌@GregTusar, @coinbase Institutional Product VP