What steps did roosevelt take to protect the consumers in america?

Roosevelt reflected three basic goals: conservation of natural resources, control of corporations, and consumer protection. These three demands are often referred to as the "three Cs" of Roosevelt's Square Deal.

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the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.