Hedda Hopper her column throughout the 1940s, advocating for her to land starring roles in "The Bells of St. Mary's" (1945) and "Joan of Arc" (1948). She was enraged when Bergman lied to her about being pregnant with married director Roberto Rossellini's baby. Hopper had believed Bergman, printing a fervent denial of the rumor in 1949. However, Bergman was indeed pregnant, and the news was leaked to Hopper's arch-rival Louella Parsons, who got the scoop. Seeking revenge, Hopper launched a PR campaign decrying Bergman for being pregnant out of wedlock and carrying a married man's child. Hopper had an acting role in
Hedda Hopper and William Bendix. Despite the good turnout at the rally, most Hollywood celebrities who took a public position sided with the Roosevelt-Truman ticket. Hopper strongly supported the House Un-American Activities Committee (HUAC) hearings and was a guest and speaker of the Women's Division at the 1956 Republican National Convention held in San Francisco to renominate the Eisenhower-Nixon ticket. She was so well known for her Conservatism that a rumor became widespread in 1950 that she planned to stand up, unfurl an American flag, and walk out of the Academy Awards ceremony if Jose Ferrer, a well known Socialist, should win