What is the significance of the slogan “waving the bloody shirt?”

"Waving the bloody shirt" were pejorative phrases, used during American election campaigns in the 19th century, to deride opposing politicians who made emotional calls to avenge the blood of soldiers that died in the Civil War. The phrases were most often used against Republicans, who were accused of using the memory of the Civil War to their political advantage. Democrats were not above using memories of the Civil War in such a manner as well, especially while campaigning in the South.

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