What is the main idea of the document why the ward boss rules?

The main idea of the document "Why the Ward Boss Rules" is to explain the significance of ward bosses in urban political machines in the early 20th century United States. It highlights how ward bosses held immense power over local communities through their control of services, jobs, and resources, allowing them to influence elections and maintain their authority. The document underscores the complex relationship between ward bosses, political parties, and urban residents.