Who was tactic used in political campaigns in last part of the 19th century was calling waving the bloody shirt. this tactic was used by the?

"Waving the bloody shirt" was a political tactic used primarily by the Republican Party in the late 19th century, particularly during the Reconstruction era. It involved reminding voters of the sacrifices made during the Civil War and the violence perpetrated by Southern Democrats, often by invoking the imagery of bloodshed. This strategy aimed to galvanize support for Republican candidates by appealing to voters' emotions and reinforcing the party's commitment to civil rights and Union loyalty. It was notably employed by politicians like Ulysses S. Grant during his campaigns.