How did the U. S. develop politically and economically in the early 1800’s? How did the United States assert itself as an independent nation?

The main way in which the United States developed politically during this time was that the Republican Party formed as an anti-slavery platform, while economically the nation flourished due to the creation of railroads. economic and military competition from Europe and a growing feeling of cultural superiority. ... They noticed the expansion of European power overseas and took an interest in the new imperialism.

Explanation:

the answer is a) james madison.

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