In 1953, Ball was subpoenaed by the House Committee on Un-American Activities because she had registered to vote in the Communist party primary election in 1936 at her socialist grandfather’s insistence (per FBI FOIA-released documents in a declassified FBI file).[6] Immediately before the filming of episode 68 (“The Girls Go Into Business”) of I Love Lucy, people in the studio audience made signs and started booing, their minds on her Capitol Hill appearance. Desi Arnaz came onstage and quipped: “The only thing red about Lucy is her hair, and even that’s not legitimate.” Then, he presented her and people started cheering for her.