He was Ehrlichmann's top assistant in the Nixon Administration. And, later, Haldeman's memos revealed that he understood Nixon to mean the Kennedy assassination whenever he mentioned exposing that whole "Bay of Pigs" thing. The names involved in the now public but previously shadowy cabal seem to stay the same.

From Wikipedia:

"In Spring 2007, Secretary Paulson told an audience at the Shanghai Futures Exchange that 'An open, competitive, and liberalized financial market can effectively allocate scarce resources in a manner that promotes stability and prosperity far better than governmental intervention.'

In August 2007, Secretary Paulson explained that U.S. subprime mortgage fallout remained largely contained due to the strongest global economy in decades.

On July 20, 2008, after the failure of Indymac Bank, Paulson reassured the public by saying, 'it's a safe banking system, a sound banking system. Our regulators are on top of it. This is a very manageable situation.'
In Spring 2007, Secretary Paulson told an audience at the Shanghai Futures Exchange that 'An open, competitive, and liberalized financial market can effectively allocate scarce resources in a manner that promotes stability and prosperity far better than governmental intervention.'

In August 2007, Secretary Paulson explained that U.S. subprime mortgage fallout remained largely contained due to the strongest global economy in decades.

On July 20, 2008, after the failure of Indymac Bank, Paulson reassured the public by saying, 'it's a safe banking system, a sound banking system. Our regulators are on top of it. This is a very manageable situation.' See Wikipedia for citations.

On August 10, 2008, Secretary Paulson told NBC’s Meet the Press that he had no plans to inject any capital into Fannie Mae or Freddie Mac.[21] On September 7, 2008, both Fannie Mae and Freddie Mac went into conservatorship.

On August 10, 2008, Secretary Paulson told NBC’s Meet the Press that he had no plans to inject any capital into Fannie Mae or Freddie Mac.[21] On September 7, 2008, both Fannie Mae and Freddie Mac went into conservatorship." See Wikipedia for citations.

Other facts linking Nixon to the JFK assassination emerged years later during the Watergate conspiracy, some of which were revealed by Nixon's former chief of staff, H. R. Haldeman. In his book, The Ends of Power, Haldeman cites several conversations where Nixon expressed concern about the Watergate affair becoming public knowledge and where this exposure might lead.

Haldeman writes:

"In fact, I was puzzled when he [Nixon] told me, 'Tell Ehrlichmann this whole group of Cubans [Watergate burglars] is tied to the Bay of Pigs.' After a pause I said, 'The Bay of Pigs? What does that have to do with this [the Watergate burglary]?' But Nixon merely said, 'Ehrlichman will know what I mean,' and dropped the subject."

Later in his book, Haldeman appears to answer his own question when he says, "It seems that in all of those Nixon references to the Bay of Pigs, he was actually referring to the Kennedy assassination."

If Haldeman's interpretation is correct, then Nixon's instructions for him to, "Tell Ehrlichmann this whole group of [anti-Castro] Cubans is tied to the Bay of Pigs," was Nixon's way of telling him to inform Ehrlichmann that the Watergate burglars were tied to Kennedy's murder. (It should be noted that many Cuban exiles blamed Kennedy for the failure to overthrow Castro at the Bay of Pigs, pointing to Kennedy's refusal to allow the American military to launch a full-scale invasion of the island.)

Haldeman also links the CIA to the Watergate burglars and, by implication, to the Kennedy assassination. Haldeman writes, "...at least one of the burglars, Martinez, was still on the CIA payroll on June 17, 1972 -- and almost certainly was reporting to his CIA case officer about the proposed break-in even before it happened."

Quoted from http://www.answerbag.com/q_view/407765; Haldeman, "The Ends of Power" (Times Books 1978); Schorr, Daniel, "Clearing the Air", (Berkeley Medallion Books 1978)