The scene at the German-American Bund camp, Camp Nordland, at Andover, N.J., August 9, 1940, as the New Jersey Realm of the Ku Klux Klan burned a large cross during a rally. FlashbackKKK parading through the streets of Tulsa, Oklahoma, September 21, 1923, while the former Sheriff Bill McCullough, whose efforts to stop the parade were fruitless, can be seen left of the hooded horse. Uniformed police march alongside. FlashbackDr. Samuel Green, center, Georgia Grand Dragon of the Ku Klux Klan, in opposing President Truman’s Civil Rights Program, speaks at a Klan demonstration in Wrightsville, Ga., March 2, 1948. FlashbackDavid Duke as he arrives at his Metairie, Louisiana campaign headquarters, February 18, 1989. Duke, a former KKK Grand Wizard running as a Republican, squeezed out a 224-vote victory over David Treen for a seat in the Louisiana Legislature. AP PhotoKu Klux Klan leader David Duke, attired in his Klan robes, poses in front of the House of Parliament in London, March 7, 1978. AP PhotoKKK leader David Duke arrives at a roadside meeting with the newsmen in Dulzura, California to detail how Klansmen are dispersed along the border looking for illegal aliens entering the country. Oct. 26, 1977Two young boys raise their arms as a white power shirt is held in front of them during a rally near Benson, North Carolina on April 20, 1980. AP PhotoA man attired in white robes leaves the Capitol grounds in Washington, D.C., Sept. 10, 1947, after being ordered away by police who escorted him from in front of the Un-American Activities Committee room. AP PhotoA hangman’s noose dangling from an automobile driven by a hooded Klansmen is among the warnings to blacks to stay away from the voting place in the municipal primary election in Miami, Fla. on May 3, 1939. AP PhotoA Klan member hands out pamphlets to the children and their parents watching their rally. Tabor City, North Carolina. August 15, 1951. Hank Walker: The LIFE Picture Collection: Getty ImagesNearby, women in the Klan have to cover their eyes, blinded by the smoke of the burning cross. Georgia. April 27, 1956, Bettmann: Getty ImagesKlansmen and their children turn a rally into a vacation and take some time sightseeing in the nation’s capital. Washington, D.C. August 1925. Library of CongressA mother wipes the dirt off her child’s face at a Ku Klux Klan gathering. Indiana. Circa 1980-1989. David Turnley: Corbis: VCG via Getty ImagesYoung boys help their fathers set up a cross to be burned. Jackson County, Ohio. 1987. Paul M. Walsh: Wikimedia CommonsA young girl in robes poses for a photograph in front of the Klan flag while her mother looks on. Location uncertain. Circa 1990-1999. Eric-Paul-Pierre PASQUIER: Gamma-Rapho via Getty ImagesMembers of Ku Klux Klan posing with Santa Claus, Klan Claus, and child. Port St. Lucie, Florida. Date unspecified. Evan Hurd:Sygma:Sygma via Getty Images