John F. Kennedy assassination conspiracy theories of the plot was thwarted, the authors allege, because it would have revealed embarrassing evidence of American government involvement with organized crime in plots to kill Castro. A 2003 Gallup poll indicated that nearly 20% of Americans suspected Lyndon B. Johnson of being involved in the assassination of Kennedy. Critics of the Warren Commission have accused Johnson of plotting the assassination because he "disliked" the Kennedys and feared that he would be dropped from the Democratic ticket for the 1964 election. According to journalist Max Holland, the first published allegation that Johnson perpetrated the assassination of Kennedy appeared in Penn
President's Commission on Obscenity and Pornography particular: President Nixon, who had succeeded Johnson in 1969, also emphatically rejected the report. In 1970, Earl Kemp published an illustrated edition of the "Presidential Report of the Commission on Obscenity and Pornography" through a publishing company owned by William Hamling called Greenleaf Classics. The 1969 President's Commission on Obscenity and Pornography issued its un-illustrated 656-page report on September 30, 1970. One month later, the report went on sale at the Government Printing Office. On November 11, 1970, copies of publisher William Hamling's Greenleaf Classics’ 352-page "The Illustrated Presidential Report of the Commission on Obscenity and Pornography" were printed, and