Special episode: The Fixer The Trump Trials: Sidebar

The crew gathers for a special Monday episode all about former Trump attorney Michael Cohen, who was called to testify in Trump's New York trial by prosecutors on Monday morning.

Libby Casey, Rhonda Colvin and James Hohmann sit down with political investigations reporter Peter Jamison to discuss Cohen's past as Trump's self-described "fixer," and Cohen's claims that he has changed since leaving Trump's employment.

Plus, national security and law enforcement reporter Devlin Barrett returns to the show to discuss why Cohen is one of the key witnesses in the New York trial.