J. Ann Selzer may be the single most powerful pollster in America. She runs the Des Moines Register’s Iowa poll, the gold standard of survey research in what is the single most-watched state, politically speaking, in the country. So when Selzer’s final numbers in the heated Senate race between state Sen. Joni Ernst (R) and Rep. Bruce Braley (D) were released Saturday night, they caused quite the shock wave on the political scene. … I reached out to her to talk about the poll, the reaction to the poll and what it’s like to poll in Iowa. CONT.
Chris Cillizza, Washington Post