One more thing. While Mr. Hogan overstated the storms’ impact, it isn’t yet clear how much lasting damage July’s flooding did to the Chesapeake Bay. It’s entirely possible the extra tons of sediment will inhibit the restoration of underwater grasses or leave behind an expanded oxygen-deprived “dead zone” in the bay. But it’s also possible the ecosystem will bounce back quickly. Too much progress has been made in recent years to assume that one storm, or even a series of storms, will reverse it. In either case, attacking Pennsylvania for, literally, “water over the dam” is foolish. What Mr. Hogan and others who care about the future of the Chesapeake Bay need to be focused on is strengthening the pollution diet and making sure EPA is ready to enforce it. Maryland can be a “good” cop, but it really takes the federal government to be the “bad” cop initiating enforcement action against non-compliant states.