Biden holds two-to-one lead over Sanders in post-debate poll

Former Vice President Joe BidenJoe BidenTrump says he doesn't want NYT in the White House Warren to protest with striking Chicago teachers Schiff punches back after GOP censure resolution fails MORE has a 2-to-1 lead nationally over the next closest Democratic presidential contender after the second round of debates, according to the latest Harvard CAPS/Harris Poll.

The new survey finds Biden with 34 percent support among Democrats, followed by Sen. Bernie SandersBernie SandersWarren to protest with striking Chicago teachers Sanders: 'Outrageous' to suggest Gabbard 'is a foreign asset' Democratic strategist: Sanders seeking distance from Warren could 'backfire' MORE (I-Vt.) at 17 percent.

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Sen. Kamala HarrisKamala Devi HarrisClinton attacks on Gabbard become flashpoint in presidential race Poll: Biden holds 10-point lead nationally over Warren Trump declines to participate in Weather Channel 2020 climate change special MORE (D-Calif.) is in third place with 9 percent support, followed by Sen. Elizabeth WarrenElizabeth Ann WarrenWarren to protest with striking Chicago teachers Overnight Health Care — Presented by Partnership for America's Health Care Future — Four companies reach 0M settlement in opioid lawsuit | Deal opens door to larger settlements | House panel to consider vaping tax | Drug pricing markup tomorrow On The Money: Trump dismisses 'phony Emoluments Clause' after Doral criticism | Senate Dems signal support for domestic spending package | House panel to consider vaping tax MORE (D-Mass.) at 8 percent, South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegSanders: 'Outrageous' to suggest Gabbard 'is a foreign asset' Hillicon Valley: Facebook removes Russian, Iranian accounts trying to interfere in 2020 | Zuckerberg on public relations blitz | Uncertainty over Huawei ban one month out Clinton attacks on Gabbard become flashpoint in presidential race MORE at 4 percent, former Texas Rep. Beto O’Rourke at 3 percent and Sen. Cory BookerCory Anthony BookerPoll: Biden holds 10-point lead nationally over Warren Trump declines to participate in Weather Channel 2020 climate change special Bennet: Warren 'not being honest about' her 'Medicare for All' plan MORE (D-N.J.) at 2 percent.

“Biden has been steady despite some rocky performances at the debates,” said Mark PennMark PennDemocrats' debate divisions open the race to new (or old) faces Polls flash warning signs for Trump on impeachment Public opinion polls show shift toward impeaching Trump MORE, co-director of the Harvard CAPS/Harris Poll. “The Democratic voters are far more in sync with Biden’s views than any of the other candidates running. He maintains his front-runner status.”

The Harvard CAPS/Harris Poll of 585 registered Democratic voters was conducted between July 31 and Aug. 1. The first night of this week's Democratic debates took place on July 30 and the second night was July 31, so some of the respondents may not have viewed the second night of debate, when Biden appeared.

Biden’s lead is down some from the previous survey conducted in late May, before the Democratic debates. At the time, the poll showed Biden holding a 30-point lead over Sanders and registering 44 percent support among Democrats.

But the former vice president remains in a strong position, with 46 percent of Democrats viewing him as having the best chance to defeat President TrumpDonald John TrumpTrump says he doesn't want NYT in the White House Veterans group backs lawsuits to halt Trump's use of military funding for border wall Schiff punches back after GOP censure resolution fails MORE. Fifteen percent of Democrats said Sanders has the best shot at knocking off Trump, followed by Warren at 7 percent and Harris at 6 percent.

A plurality of Democrats, 47 percent, said they want to nominate a candidate with the strongest chance of winning. Only 12 percent said their first preference is a candidate who shares their positions, while 36 percent said they value both traits equally.

Biden also leads when voters are asked to name the top three candidates that best share their values, with 46 percent saying Biden, followed by Sanders at 34 percent, Warren at 27 and Harris at 24.

Health care is by far the top issue for Democratic voters, with 45 percent calling it their top priority, followed by immigration at 29 percent and jobs and the economy at 20 percent.

The Harvard CAPS/Harris Poll is a collaboration of the Center for American Political Studies at Harvard University and The Harris Poll. The Hill will be working with Harvard CAPS/Harris Poll throughout 2019.

Full poll results will be posted online later this week. The Harvard CAPS/Harris Poll survey is an online sample drawn from the Harris Panel and weighted to reflect known demographics. As a representative online sample, it does not report a probability confidence interval.