FALLS CHURCH, Virginia — The baby boomers waving American flags and the Vietnam Vets hats were one thing. It was the “Sic Semper Tyrannis” signs and flags, the various barbs at George III, and the countless references to the Declaration of Independence and Constitution that brought back memories of 2010.

This “No Kings” rally right outside Washington, D.C., was a couple of tricorn hats away from being a knockoff tea party rally.