Answer: The Granger Movement against the railroads
Step-by-step explanation:
The Railroads were a very important component of the American economy in the 19th century as they transported goods and people across large distances thereby opening up new markets and areas which benefitted groups like farmers.
Farmers were able to transport their produce across the United States but the Railroad owners kept increasing their prices which made the cost of selling high for farmers, a cost they had to bear because they had no choice.
Starting from the late 1860s, famers began to bind together to form what were called Granges and these were able to influence Government legislature targeted at unfair pricing by large corporations such as the railroads.