But after years of dodging investigations while watching dozens of his colleagues hauled off to prison, Burke has been accused of crossing the line himself — and doing so in a quintessential Chicago way.

A federal criminal complaint unsealed Thursday charged Burke with attempted extortion for allegedly using his position as alderman to try to steer business to his private law firm from a company seeking to renovate a fast-food restaurant in his ward. The charge carries a maximum of 20 years in prison on conviction.

The complaint also alleged Burke asked one of the company's executives in December 2017 to attend an upcoming political fundraiser for "another politician." Sources identified the politician as Cook County Board President Toni Preckwinkle, who is running for Chicago mayor.