According to Bill Moyers, Campbell freely acknowledged and renounced the anti-semitism that he had expressed as a younger man--

Campbell apparently said that it was the type of un-thinking bigotry that he acquired while growing up--and that as he grew older, he realized that it, like so many of the things that we accept, unquestioned, while growning up, was wrong, and that he worked very hard to recognize the old prejudices as they came up in his life, and to correct them.

I have heard Moyers discuss this, but I have not come across evidence of either the earlier anti-semitism or of Campbell's disaffection from it.

I know that there is widespread awareness, at least among Jews, of Campbell's anti-semitism, and there is also a degree of skepticism about his recanting--

I cannot speak to any of this--just mentioning what I have heard--