Modern social science research often relies on bringing together information from different sources to advance our understanding about questions of interest. From studies that seek to explain the differences between self-reported and actual behavior (Ansolabehere & Hersh, 2012; Barbera, 2015; Meredith & Morse, 2015; Berent et al., 2016; Hill & Huber, 2017; Jackman & Spahn, 2019; Bonica, 2019) and the effects of the national news media on mass public and elite behavior (DellaVigna & Kaplan, 2007; Hopkins & Ladd, 2014; Arceneaux et al., 2016; Martin & Yurukoglu, 2017) to studies on clientelism and redistributive politics (De La O, 2013; Zucco, 2013, 2015; Rueda, 2016), scholars have spent considerable amounts of time and effort assembling detailed data sets from multiple sources to conduct sound empirical analyses.