History of JBS …. This flyer [by John birch Society], around 5,000 copies of which were distributed around Dallas in the days before President Kennedy's November 22, 1963 visit, accused Kennedy of a range of offenses, from being "lax" on Communism, to "appointing anti-Christians to Federal office," to lying to the American people about his personal life.
General Edwin A. Walker, a Texan who served in World War II and the Korean War, had resigned his Army post in 1961 after a Kennedy-ordered investigation found that he had violated the Hatch Act, which prohibits federal employees from engaging in political activity on the job, by distributing John birch Society literature to his troops. Walker moved to Dallas and became a leader of right-wing activity in the city (more on the full range of that activity here). The ex-General led resistance to James Meredith's 1962 enrollment at the University of Mississippi and unsuccessfully ran for the position of Texas governor.
https://slate.com/human-interest/2013/11/jfk-assassination-flyer-distributed-in-dallas-by-edwin-walker-s-group-before-his-visit.html