Army Secretary Dan Driscoll has resigned, leaving key military posts vacant after clashes with Defense Secretary Pete Hegseth. Amazon faces a new FTC and state lawsuit alleging it manipulated ad auctions to overcharge sellers. Markets saw volatility from renewed US-Iran tensions, though stocks posted monthly gains. The Met canceled a John Galliano exhibit due to his past anti-Semitic remarks, while a Grand Canyon flash flood left at least two people dead and many missing.