Former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE has a 7-point lead over the Democratic presidential primary field, according to a new Economist/YouGov poll released Wednesday, retaining his lead compared to the previous survey.

Biden is the first choice for 25 percent of those who say they intend to vote in their state’s primary or caucus, the latest poll showed.

He is followed by Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.), who garners the support of 18 percent of voters, and then Sen. Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.), who is in third place with 13 percent support.

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The top three spots remained the same when compared to the previous Economist/YouGov poll conducted on July 14-16.

Sen. Kamala Harris Kamala HarrisHundreds of lawyers from nation's oldest African American sorority join effort to fight voter suppression Biden picks up endorsement from progressive climate group 350 Action 3 reasons why Biden is misreading the politics of court packing MORE (D-Calif.) and South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE round out the top five with 9 percent and 6 percent, respectively, in the most recent poll.

Biden maintained his primary lead by posting strong showings among key demographics for his campaign, including older voters and African Americans.

Biden gets the highest support among voters aged 45-64 with 29 percent and voters aged 65 and older with 43 percent. He also gets the support of 46 percent of black voters, while no other candidate breaks double digits with that demographic group.

Biden is also the first choice for both male and female voters, getting 25 percent support from each group.

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But the former vice president continues to fall behind among younger voters, getting 9 percent support among voters aged 18-29, compared with 24 percent for Sanders and 19 percent for Warren.

The former vice president has consistently polled at the top of national and statewide primary surveys, though his lead has shrunk following last month’s Democratic debate. In the meantime, Warren has enjoyed a boost of support after a strong debate performance and the unveiling of a slate of detailed policy proposals, leapfrogging Sanders in a handful of polls but not all.

The Economist/YouGov poll surveyed 1212 registered voters from July 21-23 and has a margin of error of +/- 2.9 percent.