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
Assassination attempts on Fidel Castro heavy pressure on the CIA to "get rid of Castro." It explains a staggering number of assassination plots, aiming at creating a favorable impression on President John F. Kennedy. There were five phases in the assassination attempts, with planning involving the CIA, the Department of Defense, and the State Department: According to the CIA documents, the so-called Family Jewels that were declassified in 2007, one assassination attempt on Fidel Castro prior to the Bay of Pigs invasion involved noted American mobsters Johnny Roselli, Salvatore Giancana and Santo Trafficante. In September 1960, Momo Salvatore Giancana, a successor of Al Capone's in