Jeremy Scahill is the national security correspondent for 'The Nation,' as well as an investigative journalist and author of Dirty Wars: The World as a Battlefield. Scahill wrote and produced the new documentary 'Dirty Wars,' which opens in theaters June 7th.
Lawrence O'Donnell is the host of MSNBC's 'The Last Word with Lawrence O'Donnell.' This week he took White House reporters to task for asking ridiculous questions during presidential press conferences.
Pete Hegseth is the CEO of Concerned Veterans for America, which advocates for policies on behalf of veterans and their families. He recently co-authored an editorial in The Washington Post calling for reforms at the Department of Veterans Affairs.
Marc Maron joins the panel mid-show. He is the author of Attempting Normal and host of the "WTF with Marc Maron" podcast, where he interviews fellow comedians in his garage. His new show, 'Maron,' premieres Friday, May 3 on IFC.