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Update: A revised version of the study puts PPP in third place for accuracy below Ipsos/Reuters and YouGov. Gallup and Rasmussen are tied in fourteenth.
Obama may have won last night, and so did Nate Silver, but another victor in the election was the Democratic pollster Public Policy Polling. PPP had raised eyebrows shortly before the election with a series of polls that showed Obama leading, but a study from Fordham University political scientist Costas Panagopoulos found it was the most accurate pollster in the election.
PPP's final polls put Obama in the lead in every battleground except North Carolina, Charles Mahtesian of Politico wrote Monday evening. "Against the backdrop of a highly competitive election, the uniformity of those results—and the fact that PPP shows 5- to 6-point spreads in Colorado, Michigan, Ohio, and Pennsylvania—puts the firm out on a ledge," Mahtesian explained. "So when the final state outcomes are known, PPP figures to be one of the election’s biggest winners or losers, poised either to spike the football—or to explain what went wrong." Save Florida where we still don't know the results, their numbers plotted in the map below, from Brett LoGiurato of Business Insider, looks a lot like our map (updated for Alaska).