The three candidates make up the top tier with 23% for Biden and Warren each and 20% for Sanders. South Bend, Indiana, Mayor Pete Buttigieg has 9% support among Democrats and Democratic-leaning independents, followed by California Sen. Kamala Harris with 5%, New Jersey Sen. Cory Booker and businessman Andrew Yang with 3% each, and Minnesota Sen. Amy Klobuchar with 2% support. No other candidate receives above 1% in the poll.

The Monmouth University poll is the sixth poll conducted by live interviewers between October 17 and November 3 of the Democratic primary race, showing a slightly tighter contest than others.

Including Monmouth, a CNN Poll of Polls finds that Biden leads with 27%, Warren with 23%, Sanders with 18%, Buttigieg with 8%, Harris with 4%, Klobuchar with 3%, and Yang, Booker and Gabbard all at 2%.

The CNN Poll of Polls is an average of recent non-partisan polling among either registered Democrats and Democratic-leaning independents or registered voters who say they will participate in their state's primary or caucus.

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