Answer:
California was the biggest of all new states and likely candidates to enter the Union, though it was not very populated by then. However, its population was rising fast because of the golden rush and significant immigration from the East Coast after 1848.
The Southern states, which allowed and supported slavery, were worried that the incorporation of California as a free state would alter the delicate balance of power between free states and slavery states in Congress and in general. Let´s not forget that slavery was very important to the South because its economy was agricultural and demanded a large labor force to function.
Explanation:
"<span>a. James Madison used the idea of a three branch system described in Montesquieu's "The spirit of the laws" would be the best option, since it was Madison who advocated heavily for the separation of powers. </span>
The Enlightenment thinkers changed peoples' beliefs of how government should work by talking of separation of powers and checks and balances.
FDR used these speeches to comfort Americans who were reeling because of the devastating effects of the Great Depression.
Positive:
The years following the end of WW2 saw the United States consolidating as a superpower and the emergence of a global actor only equaled by the Soviet Union at the time. Efforts to prevent further conflicts in global scale resulted in the creation of the United Nations. The headquarters of many other multilateral organizations was lead by the US foreign policy that formerly didn't play such an active role
The "Marshal Plan" became a key for reconstruction of the European economies and it saw an emergence of financial institutions that fostered cooperation and development to many countries. This includes the World Bank, International Monetary Fund. This multilateral organisms were key to reconstruction of countries damaged by war.
Negative:
The policy of containment, and later the Cold war generated local conflicts, where famous cases like Vietnam generated a bad image to the World where Us should have not been involved
to prevent the spread of communism, saw the formation of the NATO, that nowadays is seen as an intromission from the US into European politics especially in the sphere of military and defense. Nato generates a huge military budget and relies on American troops when Europeans could be more involved in solving their particular issues and being more autonomous