"In a speech at the 1939 New York World's Fair, he attacked by name some of the nation's most prominent advocates of right-wing politics. He was most vocal about Father Charles Coughlin, the "radio priest" whose pulpit of the air was seen by some as a major dispenser of racial disharmony and anti-Semitism. Cantor also denounced George Sylvester Viereck, a German-American poet, frequent contributor to Coughlin's Social Justice magazine, and admitted admirer of Hitler and Mussolini."