Biden, Sanders top poll of possible Democratic presidential hopefuls

Former Vice President Joe BidenJoseph (Joe) Robinette BidenBiden to campaign for Stacey Abrams next week Dems with political experience could have edge in 2020 primary, says pollster Ford taps Obama, Clinton alum to navigate Senate hearing MORE and Sen. Bernie SandersBernard (Bernie) SandersFive takeaways from Cruz, O'Rourke's fiery first debate Ben & Jerry’s co-founders announce effort to help 7 Dem House challengers Dems look to Gillum, Abrams for pathway to victory in tough states MORE (I-Vt.) are the most popular potential 2020 Democratic presidential candidates, according to a new American Barometer poll. 

The poll, which is a joint project of Hill.TV and the HarrisX polling company, showed Biden with a 50 percent favorable rating, while Sanders trailed with a 48 percent favorable rating. 

Only 31 percent of those polled said they viewed the former vice president unfavorably. A third of respondents said they viewed Sanders unfavorably. 

The survey comes as speculation swirls around a slew of potential Democratic contenders, including Sens. Kirsten GillibrandKirsten Elizabeth GillibrandTeen girls pen open letter supporting Kavanaugh accuser: We imagine you at that party and 'see ourselves' Poll: Most Massachusetts voters don't think Warren should run for president in 2020 The Hill's Morning Report — Sponsored by United Against Nuclear Iran — GOP again has momentum on Kavanaugh rollercoaster MORE (N.Y.), Kamala HarrisKamala Devi HarrisSenate Democrats increase pressure for FBI investigation of Kavanaugh Poll: Most Massachusetts voters don't think Warren should run for president in 2020 Trump, GOP regain edge in Kavanaugh battle MORE (Calif.), Elizabeth WarrenElizabeth Ann WarrenDemocrats opposed to Pelosi lack challenger to topple her More Massachusetts Voters Prefer Deval Patrick for President than Elizabeth Warren Trump's trade war — firing all cannons or closing the portholes? MORE (Mass.) and Cory BookerCory Anthony BookerEx-White House official revises statement to Mueller after Flynn guilty plea: report CNN editor: Booker's 'groping incident' 'different' from Kavanaugh allegation Poll: Most Massachusetts voters don't think Warren should run for president in 2020 MORE (N.J.), who could challenge President TrumpDonald John TrumpSunday shows preview: Trump sells U.N. reorganizing and Kavanaugh allegations dominate Ex-Trump staffer out at CNN amid “false and defamatory accusations” Democrats opposed to Pelosi lack challenger to topple her MORE in 2020. 

Warren held the highest favorable rating among Democratic senators listed in the survey, with 33 percent of those polled saying they held a favorable view of the senator.

The poll showed Gillibrand holding a 20 percent favorable rating, while 21 percent of respondents said they have a favorable view of Harris, and 23 percent said the same for Booker.  

Name recognition remains an obstacle for many Democratic contenders. 

Thirty-four percent of respondents said they had never heard of Gillibrand, while 36 percent said the same for Harris. Thirty-two percent of respondents had not heard of Booker.

Only 4 percent of those polled said they had never heard of Biden or Sanders. 

Democratic pollster Margie Omero urged caution when speculating about current 2020 polling. Omero said that much could change before the presidential election. 

"I remember lots of green room snickering over Bernie Sanders in September before the [2016 Democratic] primary," Omero told Hill.TV's Jamal Simmons on "What America's Thinking" Friday. “A lot can change. That doesn’t mean that Joe Biden doesn’t have an advantage."

“I think there are going to be a lot of Democrats who are going to feel torn because there are so many exciting candidates from which to choose," she continued. 

The survey was conducted July 21–22 among 1,001 registered voters. 

— Julia Manchester