Forty-five days after the United States Court of Appeals for the Fifth Circuit declared that the Horseracing and Safety Integrity Act (HISA) is unconstitutional because its enforcement provisions violate the private non-delegation doctrine, both the HISA Authority and the Federal Trade Commission (FTC) petitioned for a rarely granted "en banc" procedure that asks for a rehearing before all 17 of that court's judges instead of just the panel of three that issued the July 5 opinion. The HISA Authority's Aug. 19 filing asked for the rehearing based on three main...