This is from George Bush: An unauthorized Biography:
"Almost ten years ago [early 1980's], a reliable source shared with one of the authors an account of a meeting between Kennedy and MacArthur in which the veteran general warned the young President that there were elements inside the U.S. government who emphatically did not share his patriotic motives, and who were seeking to destroy his administration from within. MacArthur warned that the forces bent on destroying Kennedy were centered in the Wall Street financial community and its various tentacles in the intelligence community."
To me, the high cabal is the Wall Street financial elites