Baggage that others see weighing down moderate Democrat Joe Biden is not yet bothersome to likely Democratic primary voters nationwide, who continue to prefer Biden to more liberal challengers Elizabeth Warren and Bernie Sanders,
according to SurveyUSA research completed immediately after 12 Democratic candidates debated in Ohio 10/15/19. 32% Biden (-1)
22% Warren (+3)
17% Sanders (nc)
7% Harris (+1)
5% Buttigieg (nc)
2% Booker
2% Klobuchar
2% O'Rourke
2% Yang
1% Gabbard
1% Castro
1% Steyer
1% Others
4% Undecided
About: SurveyUSA interviewed 3,900 adults nationwide 10/15/19 through 10/16/19, immediately following the CNN/NYTimes Democratic candidate Debate 10/15/19. Of the adults, 3,080 are registered to vote. Of the registered voters, SurveyUSA determined that 1,071 were likely to vote in a hypothetical Democratic primary "where they live" today. (Not every jurisdiction in the United States has a primary or caucus; not every American has a chance to vote in a Democratic primary, and by the time Democrats in certain states do get to vote in 2020, a number of the currently campaigning Democrats may have suspended their campaigns. As such, a nationwide poll such as this has greatest value when studying movement over time, from one poll to the next. Where, on this template, you see a "Triangle T", click directly on the "T" to open up tracking graphs that reveal SurveyUSA time-series data. Time-series data is not just available for the overall results to a particular question, but for every demographic sub-population. As is true with any opinion research report, the fewer the individual respondents in the sub-population, the larger the chance that sampling error and other error may make those estimates less precise.
http://www.surveyusa.com/client/PollTrack.aspx?g=816abc87-7f53-472a-907c-2f8cf42ff90c