Barrymore was a Republican. In 1944, he attended the massive rally organized by David O. Selznick in the Los Angeles Coliseum in support of the Dewey-Bricker ticket as well as Governor Earl Warren of California, who would become Dewey's running mate in 1948 and later the Chief Justice of the United States. The gathering drew 93,000, with Cecil B. DeMille as the master of ceremonies and with short speeches by Hedda Hopper and Walt Disney. Among the others in attendance were Ann Sothern, Ginger Rogers, Randolph Scott, Adolphe Menjou, Gary Cooper, Edward Arnold, William Bendix, and Walter Pidgeon.