Which city became the leading african american community in the united states?
a. harlem
b. detroit
c. chicago
d. new orleans

The answer is a, Harlem

                                                                                                           During a period known as the 'Harlem Renaissance", many influential people led the movement to expand the culture of African Americans. This led to an greater interest in music, culture, arts, and politics by many great African American leaders. The time-period this took place was the 1920's. 

The president of the united states does not have the authority to “limit” the power of the judicial branch. however, the president can influence the political direction of decisions made by justices on the supreme court through the nomination process when a position becomes available.i would say the best answer is that he can at least interpret the laws