Mark Penn, is a managing partner of the Stagwell Group, a private equity firm specializing in marketing services companies, as well as chairman of the Harris Poll and author of “Microtrends Squared.”He served as pollster and adviser to President Clinton from 1995 to 2000, including during Clinton’s impeachment, today he talks about the WAPO column on Biden.

Florida's Fight for Justice: Raul Castro and the Midterm Stakes
28:07

A Democratic Divide: Julian Epstein Sounds the Alarm
29:09

Michigan Showdown: 15 Days to the Midterms
28:56