Former House Speaker Michael Madigan is expected to face a tough cross-examination by prosecutors in his federal corruption trial Monday, in what promises to be a defining moment in the landmark case.

Cheronis, who's defended alleged racketeers and international spies to movie moguls accused of sexual assault and a witness in the Madigan trial, Lou Lang, said putting Madigan on the stand is a risk. "You didn't have an idea that your precinct captain wasn't doing a lick of work for ComEd? Is that your testimony?" prosecutor Amarjeet Bhachu said.

CHICAGO (CBS) — Former Illinois House Speaker Mike Madigan is facing cross-examination Monday in his own political corruption trial. He decided to take the stand last week to testify in his own defense. Madigan has been on trial for months, facing racketeering conspiracy, bribery, and wire fraud charges.