In the genre known as Alternate History, critical points in history are modified to suit a speculative story line generated by the author’s imagination. For example, If the South Had Won the Civil War is a 1961 alternate history by MacKinlay Kantor in which General Ulysses S. Grant is killed when thrown from his horse at the start of the Battle of Vicksburg, resulting in a Union defeat. The Confederacy goes on to win the Battle of Gettysburg and the Civil War.
In The Plot against America by Phillip Roth (2004), Franklin Delano Roosevelt loses the 1940 presidential election to Charles Lindbergh. Lindbergh, a dark horse Republican candidate, is a famous aviator, a supporter of the anti-war anti-Roosevelt America First Committee as well as a Nazi sympathizer and antisemite and his election has dire consequences for America’s Jews. 
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