YouGov conducted a three wave “megapoll” during the recent U.S. national elections, providing detailed estimates for the national popular vote and Presidential and Senate races in 27 states (a total of 51 contests).
As in the 2008 Presidential and 2010 midterm elections, YouGov hit the national vote split with almost no error using a large national sample. In individual states, the smaller samples produced larger errors, but these estimates were, on average, more accurate than other telephone and Internet polls. [cont.]
Douglas Rivers, YouGov