The fate of marijuana rescheduling took a major hit before the Fourth of July holiday, when the U.S. Supreme Court tossed a wrench into the massive engine that is the regulatory state to see what will break. The high court’s ruling in Loper v. Bright massively curtails the power of regulatory agencies to set and enforce rules, including the proposal to recategorize marijuana as a Schedule 3 substance. Were it to play out on the…