In If Then Jill Lepore takes us through the history of the Simulmatics Corporation which was a social science technology firm active in politics (and other things) in the 1960s. She pulls in all kinds of interesting history about presidential election campaigns, Vietnam, and the culture of the period.
Gate City by Michael Davidow is a work of historical fiction centering on the victory of John F. Kennedy over Richard Nixon in 1960. This novel is the first volume of the Henry Bell trilogy (Split Thirty and The Rocketdyne Commission are the other titles). All 3 novels would make a wonderful companion read to Lepore's history book as they are set in the same social milieu and considering very similar issues.