The Trump administration announced more funding to combat the opioid crisis; the U.S. is sanctioning a network of firms and ships that it says breached sanctions on Iran; The Defense Department has signed off on $3.6 billion in military funds being diverted to building the wall on the southwest U.S. border; Dorian has been downgraded to a Category 2 hurricane as residents in Florida, Georgia, and the Carolinas brace for its impact.