The newest movement to save the republic began this past Saturday on the grounds of George Washington’s old estate. Shortly before 9 a.m., nearly 100 state legislators from 32 states filed into the library that sits above the museums of Mount Vernon. It was state legislators only; supporters (and reporters) learned that the hard way, as they called for details or were stopped at the security gates. Inside, the legislators said a prayer, recited the Pledge of Allegiance, and got to work talking about how to form a convention of states that could amend the Constitution–without interference from Congress. They’d...