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