Answer;
The Knights of Labor
Explanation;
-The Populist Party consisted primarily of farmers unhappy with the Democratic and Republican Parties. The Populists believed that the federal government needed to play a more active role in the American economy by regulating various businesses, especially the railroads.
Knights of Labor was the first important national labor organization in the United States, founded in 1869. It originated as a secret organization meant to protect its members from employer retaliations.