Poll: Biden leads 2020 Democratic field by 8 points

A new poll shows former Vice President Joe BidenJoe BidenRand Paul calls for Fauci's firing over 'lack of judgment' Dems look to keep tax on billionaires in spending bill Six big off-year elections you might be missing 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 WarrenDems look to keep tax on billionaires in spending bill Six big off-year elections you might be missing Republican spin on Biden is off the mark MORE (D-Mass.), who registered  support from 18 percent of respondents.

Sen. Bernie SandersBernie SandersRepublican spin on Biden is off the mark Sanders on Medicare expansion in spending package: 'It's not coming out' Briahna Joy Gray: Biden must keep progressive promises or risk losing midterms MORE (I-Vt.) had the support of 13 percent of respondents while Sen. Kamala HarrisKamala HarrisObama looks to give new momentum to McAuliffe Kamala Harris engages with heckler during New York speech Biden's safe-space CNN town hall attracts small audience, as poll numbers plummet MORE (D-Calif.) garnered the backing of 10 percent  and South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegRepublican spin on Biden is off the mark Unanswered questions remain for Buttigieg, Biden on supply chain catastrophe Buttigieg aims to use Tucker Carlson flap to spotlight paternity leave 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.