Daniel Solis, the once-prominent Chicago alderman whose turn as an FBI mole took down the state’s two longest-serving Democratic power brokers, walked out of a federal courtroom on Tuesday with his gaze fixed on the floor.

Federal prosecutors on Tuesday highlighted Solis’ remarkable staying power and willingness to wear a wire for the FBI

As the trial resumed Monday, Michael J. Madigan's defense began a tough cross examination the feds’ star witness, former Ald. Danny Solis, who secretly recorded conversations with Madigan, others for the FBI.