Compared with earlier presidents , modern presidents are moved involved in?

Compared with earlier presidents, modern presidents are more involved in domestic affairs, since the population and complications of the US have become far more pronounced. Earlier in US history the president mainly focused on foreign policy. 

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada