Who Is Really Leading the Democratic Presidential Race?

New York Times: “A number of things can affect a poll’s results, including the wording of a horse-race question and the order that items are asked. In CNN and Fox News polls this year, respondents have typically been asked for their opinions on each of the Democratic presidential candidates, among other questions, before being queried about their vote preference.”

“In Quinnipiac’s polls — as well as those conducted by Monmouth University, which have also shown Ms. Warren climbing steadily — people have not typically been asked to evaluate the candidates one-by-one before giving their vote choice.”

“If such small differences in survey structure are indeed having an effect on results, it may reflect the fact that many respondents are not yet certain about their feelings.”