Segretti was hired by his friend
Dwight L. Chapin to run a campaign of dirty tricks – which Segretti referred to as "
ratfucking" – against the Democrats, with his work being paid for by
Herb Kalmbach, Nixon's lawyer, from presidential campaign re-election funds gathered before an April 7, 1972 law required that contributors be identified. Segretti's actions were part of the larger
Watergate scandal and were important indicators for the few members of the press investigating the Watergate burglary in the early stages that what became known as the Watergate scandal involved far more than just a burglary.
Overview of "dirty tricks" against Democrats Segretti's involvement in the "
Canuck letter" typifies the tactics Segretti and others working with him used; in this case, they forged a letter ascribed to Senator
Edmund Muskie that maligned the people, language, and culture of French Canada and French Canadians, causing that Democratic presidential candidate considerable headaches by having to deny writing the letter and to continue dealing with that recurring issue. Many historians have indicated, over the years, that Muskie's subsequent withdrawal from the presidential primaries was at least partly the result of Segretti and some of the other "ratfuckers" having created so much confusion and so many false accusations that Muskie simply could not respond in any meaningful way. Another notable example of Segretti's wrongdoing was a letter he faked, on Edmund Muskie's letterhead, falsely alleging that U.S. Senator
Henry "Scoop" Jackson, a fellow Democrat, had an illegitimate child with a 17-year-old. The "Muskie letters" also accused Senator
Hubert H. Humphrey of sexual misconduct. After testimony regarding the Muskie letters emerged, Democrats in Florida noted the similarity between those sabotage incidents and others that involved stationery stolen from Humphrey's offices after Muskie dropped out of the race. For example, a false news release on Humphrey's letterhead accused Rep.
Shirley Chisholm (D-N.Y.) of being "mentally unbalanced", and a mailing with an unidentified source mischaracterized Humphrey as supporting a controversial environmental measure that he actually opposed. ==Later activities==