What was the codename of Bob Woodward's Watergate contact?

'Deep Throat' is the pseudonym given to the secret informant who provided information in 1972 to Bob Woodward, who shared it with Carl Bernstein. Woodward and Bernstein were reporters for The Washington Post, and Deep Throat provided key details about the involvement of U.S. President Richard Nixon's administration in what came to be known as the Watergate scandal. In 2005, 31 years after Nixon's resignation and 11 years after Nixon's death, a family attorney stated that former Federal Bureau of Investigation Associate Director Mark Felt was Deep Throat. Felt was suffering from dementia at the time and had previously denied being Deep Throat, but Woodward and Bernstein confirmed the attorney's claim.

'Deep Throat' was first introduced to the public in the February 1974 book All the President's Men, written by Washington Post reporters Bob Woodward and Carl Bernstein, which was adapted as an eponymous, Academy Award-winning film two years later. According to the authors, 'Deep Throat' was a key source of information behind a series of articles on a scandal which played a leading role in introducing the misdeeds of the Nixon administration to the general public. The scandal would eventually lead to the resignation of President Nixon as well as prison terms for White House Chief of Staff H. R. Haldeman, G. Gordon Liddy, Egil Krogh, White House Counsels Charles Colson, former United States Attorney General John N. Mitchell, John Dean, and presidential adviser John Ehrlichman.