During a radio broadcast on June 29 , 1941 , one week after the Nazi invasion of the Soviet Union , Hoover disparaged any " tacit alliance " between the U.S. and the USSR , stating , " if we join the war and Stalin wins , we have aided him to impose more communism on Europe and the world ... War alongside Stalin to impose freedom is more than a travesty . It is a tragedy . " Much to his own frustration , Hoover was not called upon to serve after the United States entered World War II due to his differences with Roosevelt and his continuing unpopularity . He did not pursue the presidential nomination at the 1944 Republican National Convention , and , at the request of Republican nominee Thomas E. Dewey , refrained from campaigning during the general election
1944 Republican National Convention
1944 Republican National Convention
Herbert Hoover