Image: A crowd of 22,000 celebrates the rise of Nazism at a rally in Madison Square Garden, 1939. See also the resource page on American Connections to Nazi Germany.
Books
Scott Beekman: William Dudley Pelley: A Life in Right-Wing Extremism and the Occult.
Russ Bellant: Old Nazis, the New Right, and the Republican Party: Domestic fascist networks and their effect on U.S. cold war politics.
Chip Berlet & Matthew N. Lyons: Right-Wing Populism in America: Too Close for Comfort.
Arnie Bernstein: Swastika Nation: Fritz Kuhn and the Rise and Fall of the German-American Bund.
Alan Brinkley: Voices of Protest: Huey Long, Father Coughlin, & the Great Depression.
Sarah Churchwell: Behold, America: A History of America First and the American Dream.
Charles Gallagher: Nazis of Copley Square: The Forgotten Story of the Christian Front.
Bradley W. Hart: Hitler’s American Friends: The Third Reich’s Supporters in the United States.
Matthew N. Lyons: Insurgent Supremacists: The U.S. Far Right’s Challenge to State and Empire.
Kathryn S. Olmsted: The Newspaper Axis: Six Press Barons Who Enabled Hitler.
Steven J. Ross: Hitler in Los Angeles: How Jews Foiled Nazi Plots Against Hollywood and America.
Leo P. Ribuffo: The Old Christian Right: The Protestant Far Right from the Great Depression to the Cold War.
Evelyn A. Schlatter: Aryan Cowboys: White Supremacists and the Search for a New Frontier, 1970–2000.
William H. Schmaltz: Hate: George Lincoln Rockwell and the American Nazi Party.
Jason Stanley: How Fascism Works: The Politics of Us and Them.
Victoria Saker Woeste: Henry Ford’s War on Jews and the Legal Battle Against Hate Speech.
Articles
Russ Bellant (interview): Seven Decades of Nazi Collaboration: America’s Dirty Little Ukraine Secret.
Chip Berlet: Right Woos Left: Populist Party, LaRouchite, and Other Neo-fascist Overtures To Progressives, And Why They Must Be Rejected.
Code Switch Podcast: When Nazis Took Manhattan.
Matthew N. Lyons: huge amount of articles on his website.
Joshua D. Rothman: It Could Happen Here.
Jason Stanley: many articles on his website.
Richard Steigmann-Gall: Star-spangled fascism: American interwar political extremism in comparative perspective.
Linton Weeks: Nazi Summer Camps In 1930s America?