Slums were consequence for people migrating from the rural areas to the city.
The increasing and rampant moving from rural areas to the city gave rise to overpopulation in the cities which resulted in the rise of slums which are densely populated urban residential area which consist of closely packed, decrepit housing units in a situation of deteriorated or incomplete infrastructure, inhabited specially by impoverished citizens.
Bourbon Democrats were promoters of a form of laissez-faire capitalism which included opposition to the high-tariff protectionism that the Republicans were then advocating as well as fiscal discipline.