Former Pennsylvania Sen. Arlen Specter, who has served as a lawmaker on both sides of the aisle, joins the Melissa Harris-Perry conversation on the political partisan divide as panelists, political satirist Lizz Winstead, Republican strategist Joe Watkins, The Washington Post’s Jonathan Capehart, and The Grio’s Joy-Ann Reid, weigh in on the diminishing presence of moderates within the electorate.May 12, 2012
