"DES MOINES — Pete Buttigieg continues to surge in Iowa, leapfrogging Senator Elizabeth Warren and former Vice President Joseph R. Biden Jr. to hold a commanding lead among likely Democratic caucusgoers, according to a new poll from The Des Moines Register and CNN.

The poll showed that Mr. Buttigieg, the 37-year-old mayor of South Bend, Ind., was the first choice for 25 percent of would-be Democratic caucusgoers, a significant increase from the 9 percent he held in September, when The Register last polled the state. The support placed him far ahead of the rest of the field — with the other three top candidates in a virtual tie for second: Ms. Warren, at 16 percent and Mr. Biden and Senator Bernie Sanders at 15 percent."

https://www.nytimes.com/2019/11/16/us/politics/iowa-poll-democrats.html