A badly split political party nominates an unpopular establishment-wing presidential candidate, who proceeds to lose the general election. The other party’s equally unpopular nominee wins more than 300 electoral votes despite falling far short of a popular-vote majority. The defeated party’s insurgent wing then succeeds in rewriting the party’s rules to its advantage, and an antiestablishment candidate wins the presidential nomination—only to suffer one of the worst landslide losses in American political history.

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