For five weeks, federal prosecutors methodically built their case that then-House Speaker Michael Madigan engaged in a yearslong conspiracy to accept bribes from Commonwealth Edison in exchange for helping the utility giant’s legislative agenda in Springfield.

When Danny Solis finally stepped into the well of a federal courtroom Thursday, he made a sharp turn toward the jury box and then another toward the witness stand that had been waiting for him for more than eight years. The path he chose kept him as far as ...

The Dirksen Federal Courthouse is pictured in Chicago, where the corruption trial of former Illinois House Speaker Michael Madigan just wrapped its fourth week of testimony with the appearance of Chicago alderman-turned-FBI mole Danny Solis,

Nearly eight and a half years after being confronted by federal authorities about his own wrongdoing, former Chicago Ald. Daniel Solis took the witness stand Thursday in the corruption trial of ex-House Speaker Michael Madigan to testify about his unprecedented turn as an FBI mole.