Poll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden

Sen. Bernie SandersBernie SandersSanders, Manchin escalate fight over .5T spending bill Sanders blames media for Americans not knowing details of Biden spending plan Briahna Joy Gray: Proposals favored by Black voters 'first at the chopping block' in spending talks MORE (I-Vt.) led the Democratic field in a Sunday CBS News-YouGov poll that also saw Sen. Elizabeth WarrenElizabeth WarrenMisguided recusal rules lock valuable leaders out of the Pentagon Biden's soft touch with Manchin, Sinema frustrates Democrats Hillicon Valley — Presented by LookingGlass — Congress makes technology policy moves MORE (D-Mass.) rise to second place following a strong debate performance last week.

Sanders led with 28 percent, followed by Warren with 19 percent, former Vice President Joe BidenJoe BidenJill Biden campaigns for McAuliffe in Virginia Fill the Eastern District of Virginia  Biden: Those who defy Jan. 6 subpoenas should be prosecuted MORE with 17 percent and former New York City Mayor Michael BloombergMichael BloombergDemocrats' combative approach to politics is doing more harm than good Battling over Biden's agenda: A tale of two Democratic parties Budget impasses mark a critical turning point in Biden's presidency MORE with 13 percent. Former South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegButtigieg hits back after parental leave criticism: 'Really strange' The Hill's 12:30 Report - Presented by The Conference of Presidents of Major Italian American Organizations - US opens to vaccinated visitors as FDA panel discusses boosters Tucker Carlson mocks Buttigieg over paternity leave MORE and Sen. Amy KlobucharAmy KlobucharOn The Money — Progressives play hard ball on Biden budget plan Schumer, McConnell headed for another collision over voting rights Hillicon Valley — Presented by LookingGlass — Congress makes technology policy moves MORE (D-Minn.) rounded out the field with 10 percent and 5 percent, respectively.

Fifty percent of respondents said they found Warren the most impressive candidate at last week’s debate in Las Vegas, where she took aim at Bloomberg’s history of sexist remarks in the first debate for which the former mayor qualified.

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The poll also showed Sanders performing best against President TrumpDonald TrumpTrump criticizes Justice for restoring McCabe's benefits Biden: Those who defy Jan. 6 subpoenas should be prosecuted Hillicon Valley — Presented by LookingGlass — Hackers are making big money MORE in a head-to-head match-up, at 47 percent to 44 percent, followed by Biden, with 47 percent to 45 percent and Warren with 46 percent to 45 percent. Buttigieg and Trump were tied in a head-to-head match-up at 44 percent each, while the president led Klobuchar 45 percent to 44 percent and Bloomberg 45 percent to 42 percent.

However, the poll also found that 65 percent of voters expect Trump to be reelected.

The poll was conducted Feb. 20 to Feb. 22 among 10,000 registered voters, including 6,498 Democrats and independents planning to vote in the Democratic primary. The full sample has a 1.2 percentage point margin of error, while the sample of likely Democratic primary voters has a 1.7 percentage point margin of error.