“…Apart from its sheer novelty, several forces conspired to encourage scholars and political professionals to pursue this problem. The importance of online media grew after 2008: President Barack Obama's digital effort was hailed widely in both 2008 and 2012 (Levenshus, 2010;Scherer, 2012;Smith, 2009;Wallsten, 2010), and the Tea Party insurgency that brought the Republican party back into control of the US House of Representatives relied initially on online social media to circumvent traditional party channels (Williamson, Skocpol, & Coggin, 2011). At the same time, traditional public opinion surveys began to struggle with rising non-response rates and increased cell phone usage, which prompted a search for new means of measuring and forecasting political attitudes and intent (Boyle, Fleeman, Kennedy, Lewis, & Weiss, 2013;Christian, Keeter, Purcell, & Smith, 2010;Keeter, Kennedy, Dimock, Best, & Craighill, 2006;Kohut, Keeter, Doherty, Dimock, & Christian, 2012;Viera, Medway, Turner, & Marsh, 2013).…”