Eisenhower's press secretary Jim Haggerty said...

...well, as I said a little earlier I think this[the assassination of JFK], like the Puerto Rican attempt in front of Blair House in 1950 [an attempted assassination of President Harry S Truman] has to be a planned conspiracy."  And he said that shortly after the assassination of JFK as part of ABC New's coverage of the death of JFK while vice-president of ABC / Paramount pictures.  "This must have been a very carefully planned, terrible tragedy, and conspiracy."