While Margo continued to act in films until the 1960s, her career was curtailed by the
television blacklist that began in 1950, with the targeting of
Gypsy Rose Lee,
Jean Muir,
Hazel Scott, and
Ireene Wicker. Margo held progressive political views, but she was not a member of the Communist Party. In 1950, her name and that of her husband,
Eddie Albert, were published in
Red Channels, an anti-Communist pamphlet that purported to expose Communist influence within the entertainment industry.
Red Channels labeled her a communist because of her support for the
Hollywood Ten, her advocacy for peace, and her support for refugees. In 1964, she played the role of Selena in the
Rawhide episode "A Man Called Mushy". Albert's son spoke of his parents' blacklisting in an interview published in December 1972, crediting Albert's service during World War II with ultimately saving his career. Eddie Albert's film career survived the blacklist, but Margo was blacklisted by the major Hollywood studios. == Arts activism and engagement ==