Which court case had the greatest impact on the level of success reached by the Progressives?

The Supreme Court ruled that the federal government had the right to regulate holding companies which would unfairly eliminate competition in the marketplace. For Progressives such as Teddy Roosevelt, the court case was a huge victory against the trusts that had traditionally had its way with the court system.

could you use this to with a topic?

the key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications for minority rights. both forms of government tend to use a representational system — i.e., citizens vote to elect politicians to represent their interests and form the government.

d) a constitutional amendment