Biden, Sanders top 2020 Democratic field in Nevada poll

Sen. Bernie SandersBernie SandersSanders to call on 2020 Democrats to reject money from drug, health insurance industries The hidden connection between immigration and health care: Our long-term care crisis Harris tops Biden in California 2020 poll MORE (I-Vt.) and former Vice President Joe BidenJoe BidenCan Biden's canceled cancer initiative be salvaged? Biden's health care gaffe shows he's not ready for prime time The Hill's Morning Report - Trump seizes House impeachment vote to rally GOP MORE sit atop the 2020 Democratic presidential field in a new poll of likely Nevada caucusgoers. 

The Emerson College poll shows Biden, who is expected to announce his campaign in the coming weeks, with 26 percent support among caucusgoers, while 23 percent back Sanders.

Sen. Elizabeth WarrenElizabeth Ann WarrenDemocratic Houston councilwoman announces Senate bid Biden's health care gaffe shows he's not ready for prime time The Hill's Morning Report - Trump seizes House impeachment vote to rally GOP MORE (D-Mass.) and former Rep. Beto O'RourkeBeto O'RourkeThe Hill's 12:30 Report: Trump digs in ahead of House vote to condemn tweet Poll: Biden, Sanders and Warren lead 2020 Democrats in New Hampshire Poll: Biden leads 2020 Democrats by 13 points, followed by Sanders, Warren and Harris MORE (D-Texas) are the only other candidates who have double-digit support in the poll, with 10 percent each.

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They are followed by Sen. Kamala HarrisKamala Devi HarrisBiden's health care gaffe shows he's not ready for prime time The Hill's Morning Report - Trump seizes House impeachment vote to rally GOP Dems open to killing filibuster in next Congress MORE (D-Calif.) at 9 percent, Sound Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegHarris tops Biden in California 2020 poll The Hill's Morning Report - A raucous debate on race ends with Trump admonishment The Hill's 12:30 Report: Trump digs in ahead of House vote to condemn tweet MORE at 5 percent and entrepreneur Andrew YangAndrew YangHarris tops Biden in California 2020 poll Jack Dorsey maxes out donations to Tulsi Gabbard presidential bid The Hill's Morning Report - Presented by JUUL Labs - House to vote to condemn Trump tweet MORE at 3 percent.

Nevada is expected to be the third major nominating contest in the Democratic presidential primaries following the Iowa caucuses and New Hampshire primary. National polls and polls of voters in Iowa and New Hampshire also have consistently shown Biden and Sanders at the top of the field. 

The Emerson College poll also shows President TrumpDonald John TrumpDozens of British lawmakers stand behind 'Squad' amid Trump attacks #IStandWithIlhan trends after crowd at Trump rally chants 'Send her back' 'Racism' top search after Trump rally: Merriam Webster MORE edging out most of the leading Democratic candidates in Nevada, but Biden has a 4-point advantage over the president.

The new poll's results are based on interviews with 719 registered voters from March 28 through March 30. The margin of error is 3.6 percentage points.