Tonight's guests include:
Steve Kornacki, news editor for Salon
Lt. Col. Tammy Duckworth, Democratic candidate for Congress from Illinois, Iraq war veteran, and former Assistant Secretary for Public and Intergovernmental Affairs in the U.S. Department of Veterans Affairs
Jonathan Carlson, reporter for WNCN-TV in Raleigh, North Carolina
Executive producer Bill Wolff shares a preview of tonight's show: