How red went from the color of revolution to the color of Republicans in US politics

The red-blue split in American politics, often used to categorize states as either Republican or Democratic, is a relatively recent development. This terminology did not exist prior to the 2000 election, which saw a prolonged dispute over Florida's votes. During the contentious recount, the major television networks converged on using red to represent Republican candidate George W. Bush and blue for Democratic candidate Al Gore.

This color scheme became so ingrained in the public consciousness that it seemed inevitable, and the red and blue labels stuck for years to come.

The red-blue narrative quickly expanded beyond maps, becoming a shorthand for different cultural and political identities. By the mid-2000s, journalists were referring to "two Americas: red and blue," suggesting that the nation had become divided into two distinct groups with contrasting values. In reality, the red-blue labeling oversimplified the political landscape, as it failed to accurately capture the nuances of voter preferences and regional differences.

Political scientists argue that the red-blue convention does not do justice to the complexities of American voting patterns. A close election, like one won by just a few percentage points, would be represented by the same shade of color as a landslide victory. This oversimplification can give the impression that the country is more neatly divided than it actually is.

To address this issue, Princeton's Robert Vanderbei created a "Purple America" map, which uses a gradient of colors to represent the varying degrees of support for each party within each state. This more nuanced approach better illustrates the reality of American politics, where regional differences and varying levels of support for each party coexist.