According to historians Larry Ceplair and Steven Englund, "In actuality, the strike had resulted from Disney's overbearing paternalism, high-handedness, and insensitivity." Inspired by Disney, California State Senator Jack Tenney, chairman of the state legislature's Joint Fact-Finding Committee on Un-American Activities, launched an investigation of "Reds in movies".The probe fell flat, and was mocked in several Variety headlines.In addition to his work on Nazi Germany’s nuclear program, Dr.
Dies said he would "clear" all those who co-operated by meeting with him in what he called "executive session".
Within two weeks of the grand jury leak, all those on the list except for actress Jean Muir had met with the HUAC chairman.
On June 22, 1950, a pamphlet entitled Red Channels was published.
Focused on the field of broadcasting, it identified 151 entertainment industry professionals in the context of "Red Fascists and their sympathizers".
The American Communist Party lost substantial support after the Moscow show trials of 1936-1938 and the German-Soviet Nonaggression Pact of 1939. Under then-chairman Martin Dies, Jr., the House Un-American Activities Committee (HUAC) released a report in 1938 claiming that communism was pervasive in Hollywood.