Say Jack Kennedy does not become President in 1961, but the divergence is after Castro's 1959 takeover of Cuba, how would other men have dealt with the Castro problem? I know I am being vague here on who the President is, and I am being so deliberately, as I am interested in a variety of different scenarios covering at least a few of the men who could conceivably have been in the White House in Kennedy's place. So how would the policy pursued by President (Nixon, Johnson, Humphrey, etc.) differ from Kennedy's?