In Hidden Power author James Cockayne "explores the overlap between criminal activities and political strategy" and argues that "the distinction between legitimate society and organized crime is a false one" as reported by Insight Crime:
Over the course of 300-plus pages, Cockayne digs into a series of different episodes that illustrate various criminal groups' pursuit of sundry strategies at various points in time. To that end, Cockayne provides lively histories of organized crime's associations with Tammany Hall, the New York City political machine of the 19th century; the origins of the New York Cosa Nostra in the late 19th and early 20th centuries; the US Navy's collaboration with the New York mob during World War II; the Italian mafia's role following the Allied invasion of Sicily in 1943; and the mafia's invasion of and subsequent expulsion from Cuba during the mid-20th century.
In short, organized crime cannot exist without political corruption.
Further reading that may be of interest: