Biden, Sanders top 2020 Democratic field in Nevada poll

Sen. Bernie SandersBernie SandersChris Wallace: Trump struggling with attacks on 'shape-shifter' Harris Kamala Harris: The outreach Latinos need Biden and Harris seen as more moderate than Trump and Pence: poll MORE (I-Vt.) and former Vice President Joe BidenJoe BidenHarris to host virtual Hollywood campaign event co-chaired by Reese Witherspoon, Mindy Kaling Trump plans to accept Republican nomination from White House lawn US seizes four vessels loaded with Iranian fuel 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 WarrenChris Wallace: Trump struggling with attacks on 'shape-shifter' Harris Markey riffs on JFK quote in new ad touting progressive bona fides Howard Kurtz: Kamala Harris 'getting walk on water coverage' by media after VP pick MORE (D-Mass.) and former Rep. Beto O'RourkeBeto O'RourkeBeto O'Rourke calls Texas GOP 'a death cult' over coronavirus response Hegar, West to face off in bitter Texas Senate runoff Bellwether counties show trouble for Trump 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 HarrisHarris to host virtual Hollywood campaign event co-chaired by Reese Witherspoon, Mindy Kaling Democrats hammer Trump for entertaining false birther theory about Harris Hillicon Valley: 'Fortnite' owner sues Apple after game is removed from App Store | Federal agencies seize, dismantle cryptocurrency campaigns of major terrorist organizations MORE (D-Calif.) at 9 percent, Sound Bend, Ind., Mayor Pete ButtigiegPete ButtigiegThe Hill's Morning Report - Presented by Facebook - The choice: Biden-Harris vs. Trump-Pence California Democrats back Yang after he expresses disappointment over initial DNC lineup Obamas, Clintons to headline Biden's nominating convention MORE at 5 percent and entrepreneur Andrew YangAndrew YangThe Hill's Campaign Report: Trump threatens Postal Service funding l Biden proposes national mask mandate l Democratic convention takes shape Bloomberg to speak at Democratic convention Allegations roil progressive insurgent's House bid 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 TrumpUSPS warns Pennsylvania mail-in ballots may not be delivered in time to be counted Michael Cohen book accuses Trump of corruption, fraud Trump requests mail-in ballot for Florida congressional primary 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.