Goldsborough became editorial page editor of the San Diego Tribune in 1991, and from 1992 to 2004 was foreign affairs columnist for the San Diego Union Tribune, resigning from the newspaper in December 2004 over the publisher's killing of a column explaining why Jewish voters overwhelmingly cast their presidential ballots for John Kerry. The article was subsequently published in the New York The Jewish Daily Forward under the headline "Too Hot for San Diego."
