In 1972, Sobran began working at "National Review". During the 1970s, he frequently used the byline M. J. Sobran. He stayed for twenty-one years, eighteen as senior editor, before he was removed from the publication amidst controversial charges of antisemitism. Aside from his work at "National Review," Sobran spent twenty-one years as a commentator on the CBS Radio "Spectrum" program series. He was a syndicated columnist, first with the "Los Angeles Times" and later with the Universal Press Syndicate. In 2007, he discontinued circulation of his newsletter by mail.