In many ways, the city of Chicago is typical of the United States as a whole in the twentieth century. It is a cross-section of the mixture of races, religions, sects, linguistic groups, and economic classes that go to make up modern America. In the past two decades, the political behavior of the citizens of Chicago in national elections has been similar to that of the entire American electorate. Except for the election of 1916, when Hughes carried the city by a narrow margin, the presidential candidate who carried Chicago also carried the electoral college.
At irregular intervals, there have occurred in American party history certain crucial presidential elections which appear to have set the party alignments for several decades. The election of 1896 was such an election, since it determined the supremacy of the Republican party for a period of a quarter of a century, interrupted only by the Wilson Administration, which came to power because of a split in the Republican ranks. A new era in American politics was definitely started by the election of 1932 which ended the Republican dominance. An intensive study of the behavior of the voters in Chicago during this political upheaval will throw some light upon the motivation of the voters in the entire United States.