He went to work for the Robert R. Mullen Company, later deemed a CIA front company. In 1971 he was recruited by Charles Colson, special counsel to President Richard Nixon, and joined the President's Special Investigations Unit (alias White House Plumbers).
A few days after the Watergate break-in's, Nixon was recorded as saying "V]ery bad, to have this fellow Hunt, ah, you know, ah, it's, he, he knows too damn much and he was involved, we happen to know that. And that it gets out that the whole, this is all involved in the Cuban thing, that it's a fiasco, and it's going to make the FBI, ah CIA look bad, it's going to make Hunt look bad, and it's likely to blow the whole, uh, Bay of Pigs thing which we think would be very unfortunate for CIA and for the country at this time, and for American foreign policy, and he just better tough it and lay it on them."
Hunt put pressure on the White House and the Committee to Re-Elect the President for cash payments to cover legal fees, family support, and expenses, for himself and his fellow burglars. Key Nixon figures, including Haldeman, Charles Colson, Herbert Kalmbach, John Mitchell, Fred LaRue, and John Dean eventually became entangled in the payoff schemes, and large amounts of money were passed to Hunt and his accomplices, to try to ensure their silence at the trial, by pleading guilty to avoid prosecutors' questions, and afterwards.
Hunt's wife, Dorothy, was killed in the December 8, 1972 plane crash of United Airlines Flight 553 in Chicago. Congress, the Federal Bureau of Investigation (FBI), and the National Transportation Safety Board (NTSB) investigated the crash, and found it to be an accident caused by crew error. Over $10,000 in cash was found in Dorothy Hunt's handbag in the wreckage.