H. R. HALDEMAN
(Harry Robbins Haldeman)
There was no way of reopening the investigation into the assassination without the public finding out that the CIA and FBI both had deliberately misled the Warren Commission and the House Investigating Committee in the original investigation. Nixon and other politicians who likely knew of the scandal did not want the confidence of the public eroded in this important agencies, and that was probably his motivation for the turn down rather than trying to cover up facets about the assassination itself.
Haldeman was then an advertising executive nat J. Walter Thompson
Not every president feels the need for one. Nixon however had several.
There is no written record of this conversation. The source is the Nixon Oval Office tapes.
The value of media ads—especially television was just beginning to be appreciated. Haldemant, with a business background had a better appreciation than most of the power of TV as a campaign tool.
Harry Robbins "Bob" Haldeman was an American political aide and businessman, best known for his service as White House Chief of Staff to President Richard Nixon and his consequent involvement in the Watergate scandal.