Chicago's Daleys: History of a Dynasty

Political Machine
Known as a master politician, Daley built one of the most effective and longest-lived political operations in American history. He placed extraordinary emphasis on the importance of grass-roots organization and controlled a small army of loyal and active precinct workers. Even in later years, when his administration was besieged by corruption scandals, he still managed to outpoll his rivals by significant margins.

• Chicago and the Legacy of the Daley Dynasty