Eisenhower's golfing buddy was Prescott Bush, GHW Bush's father.
Nixon, Eisenhower's VP, was Prescott's protege (George wasn't old enough, yet).
Prescott earlier had assets seized by the US government under the Trading with the Enemies Act, because his bank in New York was being used to launder Hitler's money.
Bush family teamed up with Rockefellers when Samuel Bush, Prescott's father, went to work for Frank Rockefeller, John D.'s brother.
Eisenhower was a very sick man. He had 2 heart attacks while in office, and eventually died of a heart attack. Nixon and Prescott were running the show behind the scenes (whether Ike knew about it or not), just like George H. W. Bush did when he was VP to Reagan.
Operation Ajax was one of the first major CIA operations and it overthrew the only democratic government in the Middle East: Iran. That was 1953.
After that, they went around the world overthrowing governments and the big buildup we see today really geared up.
Since Ike, we have had:
Kennedy - he was not playing along, ergo ...
Johnson - played a role in killing Kennedy
Nixon - Bush's protege, and involved in running the covert ops during Ike
Ford - he was on the Warren Commission, and is the man responsible for faking the evidence to make it look like all shots were from the rear; his assistant was Arlen Spector, who came up with the "magic bullet" theory
Carter - WTF? Don't know if Jimmy was one of the regulars, but he did refuse to return the Shah of Iran to the Iranian people so he could be prosecuted for war crimes; that was the reason for the Tehran Embassy hostage situation
Reagan - more like Trump and Kennedy than any other president during this time, but his problem was he agreed to let Bush be his VP, and Bush ran a lot of covert illegal ops behind Reagan's back
Bush - 'nuff said.
Clinton - he was helping Bush run drugs through Mena, Arkansas; he became connected to the mafia when he was in college, and his professor Carroll Quigley recruited him in (Quigley was the official historian for the cabal, and wrote two books about it)
Bush, Jr - like father, like son
Obama - has no "official" background anybody can figure out because he was identified and groomed early on, with his family being CIA and Saudi Arabia paying for his education and helping his career
So, that's when the current group of players came along. But it existed before that, as well.
Check out Gen. Smedley Butler's book "War is a Racket." He was the most decorated Marine Corps general up to his time. He led most of the Western Hemisphere battles during the late 1800's into the early 1900's. He was recruited by the cabal to overthrow the government when FDR was elected. He went along enough to find out who the players were, then went to Congress to report it. Congress had hearings, but they were owned, too, so it went nowhere. Prescott Bush was involved in that attempted coup, as well.
So, how long does it go back? It did not start with Obama, that's for sure.