Marmor was one of two "expert" witnesses who appeared and gave testimony in Judge Buchmeyer's federal court, which was the North Texas district, in support of the gay appellants' position. The case was very like the Lawrence case, and the appeal in federal court was intended to overthrow the Texas sodomy statute. The case had been basically forum-shopped to Buchmeyer's court because he was a screaming liberal, who went on to hand down all sorts of other outrageous "interstitital and penumbrous" McGovernite decisions and dicta.
The actual defendants on appeal were the Texas attorney general (a 'Rat who didn't want to defend) and local D.A.'s, until a group of Dallas-area doctors calling themselves Dallas Doctors Against AIDS attempted to intervene on public-health grounds, with the acquiescence of one of the attorneys originally defending. The DDAA attorney, who was arguing that the emergent AIDS epidemic argued for a strong public interest in a statute that banned a principal mode of AIDS transmission, summoned Paul Cameron on short notice (he'd been involved in another case at Texas A&M University), and Cameron appeared for the intervenors, against Marmor. His presentation was apparently ragged and included current newspaper stories, and the judge seized on the nonprofessional sources to attack Cameron's credibility. Cameron's presentation necessarily attacked Marmor's, and Cameron may have said some things about Marmor's activities as vice-president and then president of the APA that militated against Marmor's objectivity. Marmor rebutted and attacked Cameron, but I don't have that material. Buchmeyer basically said from the bench that the eminent Dr. Marmor, past president of the APA, is a lot more credible than Paul Cameron, who perforce is a liar and a faker.
Marmor may have made reference -- this is speculation -- to an incident a few years before, in which Cameron was sucker-punched by someone who planted a story on him at a meeting in Nebraska. Cameron was talking to a group about the numbers of incidents of youth abuse involving gay men, and "someone" told "someone else" just before the meeting about an outrageous incident of child abuse by a gay man or men that had just occurred and was a live, open case in Nebraska. That person repeated the story with all the details to Cameron, who carelessly repeated it during his presentation. He was promptly attacked as a liar, and on inspection the story vanished into thin air. IMHO the story was planted on Cameron to damage him, and I think -- I'd have to find a transcript from 1981 to be sure -- Marmor may have mentioned the incident in rebutting Cameron before Buchmeyer, and then played Buchmeyer's reaction back to the professional-affairs committee of the Nebraska chapter of the American Psychological Association, of which Cameron was a member. As I posted above, this professional-affairs investigation sent Cameron a letter demanding a review of his materials and writings, to which Cameron replied by resigning.
Cameron, who carelessly repeated it during his presentation.
Oh yes; now I remember you telling me this before. Let’s face it, he’s made mistakes, he’s maybe a little naive but that doesn’t compare to the Big Lie propagated by the APA. The effects for which have trickled down from psychiatry to psychology to sociology and psychoanalysis; that was the day when science was left behind for social engineering and bias.