Anderson feuded with former
FBI chief
J. Edgar Hoover in the 1950s, when he exposed the scope of the Mafia, a threat that Hoover had long downplayed. Hoover's retaliation and continual harassment lasted into the 1970s. Hoover once described Anderson as "lower than the regurgitated filth of vultures."
Anderson grew close to
Joseph McCarthy, and the two exchanged information from sources, but when Pearson went after McCarthy, Anderson reluctantly followed at first, then actively assisted with the eventual downfall of his one-time friend.
In the mid-1960s, Anderson exposed the corruption of Senator
Thomas J. Dodd, which could well have earned him a Pulitzer, as could his finding of a memo by an
ITT executive admitting the company paid off
Richard Nixon's campaign to stymie
anti-trust prosecution. His reporting on Nixon earned him a place on the
master list of Nixon political opponents.
Anderson collaborated with Pearson on "The Case Against Congress," published in
1969.
In
1972, in an overlooked
nadir of American political history, Anderson was the target of an aborted assassination plot in the White House. Two
Nixon administration conspirators admitted under
oath they plotted to
poison Anderson on orders from White House aide
Jeb Magruder. White House "plumbers"
G. Gordon Liddy and
E. Howard Hunt met with a
CIA operative to discuss the possibilities, including drugging Anderson with
LSD, poisoning his aspirin bottle, or staging a fatal
mugging. The conspirators were never ordered to proceed, and the plot aborted, when the plotters were arrested as a result of the
Watergate break-in. Nixon had long been angry with Anderson, blaming the columnist for his loss of the
1960 presidential election, because of an election-eve story about a secret loan from
Howard Hughes to Nixon's brother.
According to the
family jewels documents, in 1974, during the
Indo-Pakistani War, the director of the CIA,
Richard Helms, put Anderson under tap. Jack Anderson had written two articles on assassination attempts on Castro through
John Roselli.
Anderson's unorthodox methods of obtaining news stories were influenced by his Mormon
faith, viewing investigative reporting as a noble calling from
God.
Among Anderson's "legmen" — reporters who actually went out into the field and gathered the information, forwarding it on to writers such as Anderson — was
Brit Hume, later a reporter for
ABC News and Washington managing editor for
Fox News Channel.
Anderson remained a target of FBI investigation even after his death. In February 2006, the FBI contacted Anderson's family to obtain his files and search for classified documents. The FBI agents claimed to be looking for documents pertaining to
American Israel Public Affairs Committee (AIPAC) as part of an espionage investigation. In November 2006, the FBI quietly gave up its pursuit of the archive. The archive, as revealed in
The Chronicle of Higher Education, contains Anderson's CIA file, along with information about prominent public figures such as Richard Nixon, Ronald Reagan, Thomas Dodd, and J. Edgar Hoover.