John F. Kennedy assassination conspiracy theories found in my research" points to involvement by Johnson. In its report, the Warren Commission stated that it had investigated "dozens of allegations of a conspiratorial contact between Oswald and agents of the Cuban Government" and had found no evidence of Cuban involvement in the assassination of President Kennedy. The House Select Committee on Assassinations also wrote: "The committee believes, on the basis of the evidence available to it, that the Cuban Government was not involved in the assassination of President Kennedy". However, some conspiracy theorists continue to allege that Fidel Castro ordered the assassination of Kennedy in retaliation for
Assassination of John F. Kennedy to impact the facts of the Kennedy assassination. President Donald Trump said in October 2017 that he would not block the release of documents. Many conspiracy theories posit that the assassination involved people or organizations in addition to Lee Harvey Oswald. Most current theories put forth a criminal conspiracy involving parties as varied as the FBI, the CIA, the U.S. military, the Mafia, Vice President Johnson, Cuban President Fidel Castro, the KGB, or some combination of those entities. Public opinion polls have consistently shown that a majority of Americans believe there was a conspiracy to kill Kennedy. Gallup polls have