This was the name given to a group of Southern Democrats who worked to break the power of Republicans in the South during the Reconstruction era.

The answer is the Redeemers

Explanation:

After the Civil War, the South was destructed and dominated by the Republican party. However, the presence of republicans wasn't seen as a good omen, because their interests were not compatible with the problems of the South people. The Redeemers were an answer to this massive presence of republicans. They consider themselves as a branch of the Democratic Party and were aligned with the interests of the rural areas and to preserve the interests of a majority population. They conducted several changes in the Southern farms and the laws that regulated agriculture.

The answer is Redeemers