", was an isolationist and antisemitic speech that American aviator Charles Lindbergh delivered at a 1941 America First Committee rally held in Des Moines, Iowa.

Called Lindbergh's "most controversial public speech",[1] his use of antisemitic tropes and his monolithic characterization of American Jews as war-agitating outsiders prompted a nationwide backlash against him and America First that the organization "never recovered from".

[2] After completing the first nonstop solo flight across the Atlantic Ocean in 1927, American aviator Charles Lindbergh became an internationally famous and admired public figure.

[4] An advocate for aviation, Lindbergh was interested in the military airpower of various European nations; he personally considered the United Kingdom deficient and Nazi Germany impressive in that regard.

[16] Lindbergh's speeches were broadcast over radio and excited audiences, who wrote to him with praises—such as for his rhetorical appeal to reason and calming voice—and according to historian David Goodman, he was "the most popular and charismatic orator" in the public debate about intervention.

[20] Preparing for a scheduled address at an America First rally to be held in Des Moines, Iowa, Lindbergh wrote several drafts of a speech he initially titled "Who Are the Interventionists?"

[34] Accusations like those in Lindbergh's speech were recognizable in the United States at the time as antisemitic stereotypes codified by the hoax document The Protocols of the Elders of Zion.

[38] Lindbergh accused the presidency of Franklin D. Roosevelt of wanting America to go to war as a bid for further power,[39] consolidating control by artificial "maintenance of a wartime emergency".

[47] On September 16, 1941, the Davenport Times of Iowa reported that no other "public utterance by a figure of prominence in American life in a generation [...] brought forth such unanimous protest from the press, the church and political leaders".

[49] Interventionists, noninterventionists, Democrats, Republicans, and Communists alike criticized Lindbergh, saying that the speech suggested he was antisemitic and sympathized with Adolf Hitler, the leader of Nazi Germany.

[55] Charles Coughlin, Merwin K. Hart, Herbert Hoover, and Alf Landon spoke in defense of Lindbergh, though their support, according to biographer Berg, "harmed more than they helped".

[57] Numerous members and leaders of America First resigned in the aftermath of Lindbergh's speech[58] while fascists and supporters of Hitler signed up to join in their place.

[59] As president, the character Lindbergh institutes antisemitic policies relocating American Jews, and his real-life Des Moines speech is reprinted in a postscript.

[63] Jewish studies professor Allan Arkush criticized The Plot Against America, as well as its HBO-produced miniseries adaptation of the same name, for implying that "an openly antisemitic candidate could have won the presidency in 1940", doubting the premise (though complimenting the execution) on the basis that in reality the Des Moines speech faced severe public backlash.