Claim: Dear Abby (an American advice column founded in 1956 by Pauline Phillips) produced a rivalry between the two sisters and on February, 1987, the Chicago Tribune announced that the Ann Landers column was moving to the Tribune
Evidence: Dear Abby is an American advice column founded in 1956 by Pauline Phillips under the pen name "Abigail Van Buren" and carried on today by her daughter, Jeanne Phillips, who now owns the legal rights to the pen name. This produced a rivalry and lengthy estrangement between the two sisters. On February 13, 1987, the Chicago Tribune announced that the Ann Landers column was moving to the Tribune, which had published the Dear Abby column for years.