A political party is a term that is used to describe a coordinated group that strives to win elections to have an impact on the activities of the government.
However, to have an impact on the government's activities could lead to influencing how the constitution is interpreted as they help determine the choices of candidates, policies, and programs presented to the voters.
The monopolies simply found ways to get around the law. Starting in 1902, a magazine reporter named Ida Tarbell began exposing the ways the Standard Oil Company got almost total control of the oil industry