Commenter asks the question "Who put the blacks in in the inner-cities?" Wink, wink - implication that the deed was the work of the Democrats. Frankly, the answer is no.  During the two great migration periods where blacks left the south in mass and moved north, MOST settled in N.Y., Chicago, Philadelphia, Detroit, Minneapolis, Seattle, Boston, Baltimore, Oakland, St. Louis, Los Angeles, Washington, D.C.  If we look at the party in charge in most cities during the period (1910 - 1950), the cities were under control of Republicans.  Blacks moving into northern cities were welcomed by various forms of economic discrimination - higher insurance rates, banks refusing to lend, access to well-paying jobs were limited.  This meant that ethnic minorities were restricted as to where they could live - depicted quite well in David Cutler's work entitled Rise and Decline of the American Ghetto.