Midte rm Election Poll Accuracy (Gallup & Pew election weekend LV estimates)
The Gallup Organization has tracked voter preferences in House races for more than half a century, and its final midterm election polls have consistently paralleled actual election results. Indeed, on average, the final Gallup Poll has been within 1.1% of the actual vote. Similarly, surveys by the Pew Research Center for the People & the Press (as well as its predecessor, the Times Mirror Center for the People & the Press) have consistently shown that the generic ballot closely tracks election results.2 For example, in 1994 both the Pew and Gallup surveys found a Republican majority in the popular vote for the first time in more than 40 years, foreshadowing that year’s GOP takeover of the House.
Midte rm Election Poll Accuracy  | (Gallup & Pew election weekend LV estimates)  | : a sill I I  | 60%  | 50%  | 40%  | Final Election Ga Ilup Outcome Poll  | Election Fina Ilup Outcome Poll  | Election Fina Pew Outcome Poll  | 30%  | I  | 3  | S  | E  | S  | S  | C  | 8  | 8  | 3  | I  | 3  | I 