Issenberg visited the Dole Institute of Politics in fall 2012 as a program guest discussing his book The Victory Lab: The Secret Science of Winning Campaigns, published by Crown that same year. Research for his third book project, The Engagement: A Quarter-Century of Defending, Defining and Expanding Marriage in America, for which he has received funding from the Dole Archives, is currently underway. Issenberg will examine the archives for insights into the legislative machinations around the Defense of Marriage Act, which Dole co-sponsored in 1996. His book is scheduled for publication in 2016.Filmed on August 20, 2014 at the Dole Institute of Politics.