Poll: Biden leads 2020 Democratic field by 8 points

A new poll shows former Vice President Joe BidenJoe BidenEight Democratic presidential hopefuls to appear in CNN climate town hall Hill Reporter Rafael Bernal: Biden tries to salvage Latino Support Biden, Buttigieg bypassing Democratic delegate meeting: report MORE leading the crowded 2020 Democratic presidential field by 8 points. 

The Economist/YouGov survey found that 26 percent of Democratic presidential primary or caucus voters said they would support Biden. He's trailed by Sen. Elizabeth WarrenElizabeth Ann WarrenTop Sanders adviser: Warren isn't competing for 'same pool of voters' Eight Democratic presidential hopefuls to appear in CNN climate town hall In shift, top CEOs say shareholder value not top goal MORE (D-Mass.), who registered  support from 18 percent of respondents.

Sen. Bernie SandersBernie SandersTop Sanders adviser: Warren isn't competing for 'same pool of voters' Eight Democratic presidential hopefuls to appear in CNN climate town hall Top aide Jeff Weaver lays out Sanders's path to victory MORE (I-Vt.) had the support of 13 percent of respondents while Sen. Kamala HarrisKamala Devi HarrisEight Democratic presidential hopefuls to appear in CNN climate town hall Biden, Buttigieg bypassing Democratic delegate meeting: report The Hill's Morning Report - Trump on defense over economic jitters MORE (D-Calif.) garnered the backing of 10 percent  and South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegEight Democratic presidential hopefuls to appear in CNN climate town hall Biden, Buttigieg bypassing Democratic delegate meeting: report The Hill's Morning Report - Trump on defense over economic jitters MORE attracted 5 percent. 

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Those five candidates are among more than two dozen in the race for the Democratic presidential nomination and 20 who have appeared or will appear on the Democratic debate stage this week in Detroit. They're also the only candidates in the new survey with at least 3 percent support. 

Researchers surveyed 1,500 adult citizens including 1,101 registered voters between July 27 and July 30. The overall margin of error was 2.6 percentage points. For registered voters, it was 3.1 points.

Biden has consistently been the front-runner in most major polls.