Why don't Democrats know Democrat Party History ?

San Francisco April 1906, the Democrat Mayor of San Francisco orders that Army Brigades at the Presidio be cleared out and sent to Market Street and Van Ness to shoot and kill looters on site. The official Shoot and Kill Death Toll of U.S. Citizens by the U.S. Army is around 200 Dead Americans. I have other examples of Posse Comitatus if you Democrat like. U.S. Marine and Historian