Federalism is one of the central principles of American Constitutionalism because helps in the dividing and sharing of power between state and national governments, thus, making organization of the government manageable and standardized.
The other major principles of American Constitutionalism are:
Popular Sovereignty; Checks and Balances; Limited Power of the Government; Separation of Branches.
America should steer clear of foreign alliances when it has liberty to do so
The reason why Carnegie Steel was an example of Vertical Integration was that the company controlled every step of steel production and distribution.
<h3>What is vertical integration?</h3>
Vertical integration refers to when a company takes over processes along the chain of production and distribution.
Carnegie Steel controlled every step in the steel production chain which meant that it engaged in vertical integration.
Find out more on veritcal integration at brainly.com/question/19815172.
The check and balances system
They felt that Latin American ports were of greater strategic value than Pacific ports.