There is no "bipartisan" in Chicago and increasingly in the state. The only splits are on racial lines and they usually involve how much each is allowed to steal. Ayers and Dohrn aren't the only ones. There are several others aged hippies that have wormed their way into taxpayer revenues.
Daley is smarter than people give him credit for,he is able to dissolve any potential challenge by buying out those that would have been adversaries. His father was the same way.