As we all know, a plethora of polls were conducted throughout the country but some proved much more accurate than others. By and large, virtually every pollster correctly forecasted the races in Colorado and South Dakota, but fared very poorly in Kansas and Virginia.
Of the late polls taken, usually the last five immediately prior to the election, we look at which pollsters did the best and worst in the most competitive Senate campaigns.
• Actual result: Dan Sullivan (R) 48%; Sen. Mark Begich (D) 46% – +2 points
• Closest Pollster: Public Policy Polling (Nov. 1-2): Sullivan, 46-45% – +1 point
• Worst Poll: Ivan Moore & Assoc (Oct. 24-26): Begich 48-42%; missed by 9 points
• Actual result: Rep. Tom Cotton (R) 57%; Sen. Mark Pryor (D) 40% (+17)
• Closest Pollster: University of Arkansas (Oct. 21-27); Cotton 49-36% – +13 points
• Worst Poll: Opinion Research Assoc (Oct. 25-26); Pryor 45-44%; missed by 18 points
• Actual result: Rep. Cory Gardner (R) 49%; Sen. Mark Udall (D) 46% (+3)
• Closest Pollster: The final Public Policy Polling, Quinnipiac University, and YouGov surveys were all between one and three points
• Worst Poll: None; all of the Colorado participating pollsters correctly predicted the final trend.
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