Elizabeth Warren edges out Joe Biden in Des Moines Register Iowa poll

Massachusetts Sen. Elizabeth Warren has overtaken former Vice President Joe Biden in Iowa, according to a new Des Moines Register/CNN poll of the crucial state.

The poll out Saturday night found Warren was the top choice for the Democratic nomination with 22 percent support among likely caucus-goers, while Biden had the support of 20 percent of respondents. Vermont Sen. Bernie Sanders fell to third with 11 percent.

The poll was conducted of 602 likely Democratic caucus-goers from Sept. 14-18. The margin of error is plus or minus 4 percentage points.

The last Register/CNN poll, in June, had Biden leading with 24 percent and Warren in the third spot at 15 percent, slightly behind Bernie Sanders, who came in second with 16 percent support.

While there have been several other recent polls of the crucial first-in-the-nation caucus state, the Des Moines Register's Iowa Poll, conducted by Des Moines-based pollster Ann Selzer, is widely considered to be the most accurate, so its Saturday night releases have become must-watch events for Iowa politicos.

The poll was released after the entire 2020 Democratic presidential field gathered in Des Moines Saturday for the annual Steak Fry, a fundraising event hosted by the local Democratic Party club.

Warren surged 7 points in the poll since the June survey, while Biden lost a bit of ground, putting them neck-and-neck inside the poll’s margin of error.

Sanders and Mayor Pete Buttigieg of South Bend, Indiana, both slipped significantly, down 5 and 6 percentage points, respectively, leaving Buttigieg at 9 percent, down from 15.

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ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) JOE BIDEN, ELIZABETH WARREN, KAMALA HARRIS
Democratic presidential hopefuls Former Vice President Joe Biden (L) and California Senator Kamala Harris (R) speak while Vermont Senator Bernie Sanders walks by after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
Democratic presidential hopeful California Senator Kamala Harris speaks during the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
Democratic presidential hopeful Massachusetts Senator Elizabeth Warren speaks with the press at the Spin Room after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
Democratic presidential hopeful Former Texas Representative Beto O'Rourke speaks during the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
Democratic presidential hopeful Mayor of South Bend, Indiana, Pete Buttigieg speaks during the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) AMY KLOBUCHAR, CORY BOOKER, PETE BUTTIGIEG, BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN, KAMALA HARRIS, ANDREW YANG, BETO OROURKE, JULIAN CASTRO
Democratic presidential hopeful Vermont Senator Bernie Sanders speaks during the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
Democratic presidential hopeful Massachusetts Senator Elizabeth Warren speaks during the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate former Texas congressman Beto O'Rourke is interviewed by the media in the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
Democratic presidential hopeful Former Texas Representative Beto O'Rourke speaks with the press at the Spin Room after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Sen. Elizabeth Warren (D-MA) walks the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
US-Mexican journalist Jorge Ramos (L) speaks with Former Vice President Joe Biden during a break in the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Sen. Cory Booker (D-NJ) and Sen. Kamala Harris (D-CA) greet each other in the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate Sen. Cory Booker (D-NJ) is interviewed the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
Democratic presidential hopeful Former Texas Representative Beto O'Rourke (C) speaks with the press at the Spin Room after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) AMY KLOBUCHAR, CORY BOOKER, PETE BUTTIGIEG, BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN, KAMALA HARRIS, ANDREW YANG, BETO OROURKE, JULIAN CASTRO
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) JOE BIDEN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) BERNIE SANDERS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) ANDREW YANG, BETO OROURKE, JULIAN CASTRO
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) BETO OROURKE, JULIAN CASTRO
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) ELIZABETH WARREN, KAMALA HARRIS, ANDREW YANG
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) PETE BUTTIGIEG, BERNIE SANDERS, JOE BIDEN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) PETE BUTTIGIEG, BERNIE SANDERS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) DAVID MUIR, LINSEY DAVIS, JORGE RAMOS, GEORGE STEPHANOPOULOS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) AMY KLOBUCHAR, CORY BOOKER, PETE BUTTIGIEG, BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN, KAMALA HARRIS, ANDREW YANG, BETO OROURKE, JULIAN CASTRO
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) CORY BOOKER, PETE BUTTIGIEG, BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) CORY BOOKER
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) JOE BIDEN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) KAMALA HARRIS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) DAVID MUIR, LINSEY DAVIS, JORGE RAMOS, GEORGE STEPHANOPOULOS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) JOE BIDEN, ELIZABETH WARREN
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) KAMALA HARRIS, ANDREW YANG, BETO OROURKE, JULIAN CASTRO
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) JORGE RAMOS, GEORGE STEPHANOPOULOS
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) DAVID MUIR, LINSEY DAVIS, JORGE RAMOS
Democratic presidential hopeful Former Texas Representative Beto O'Rourke (C) speaks to the press at the Spin Room after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate Sen. Bernie Sanders (I-VT) walks the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
General view of the Spin Room as Democratic presidential hopefuls Vermont Senator Bernie Sanders (bottom L), New Jersey Senator Cory Booker (C) and Mayor of South Bend, Indiana, Pete Buttigieg (Top L) speak with the press after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate South Bend, Indiana Mayor Pete Buttigieg (L) is interviewed by ABC News in the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
Democratic presidential hopeful Vermont Senator Bernie Sanders speaks at the Spin Room after the third Democratic primary debate of the 2020 presidential campaign season hosted by ABC News in partnership with Univision at Texas Southern University in Houston, Texas on September 12, 2019. (Photo by FREDERIC J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate Sen. Amy Klobuchar (D-MN) enters the spin room after the Democratic Presidential Debate at Texas Southern University on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Justin Sullivan/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Jorge Ramos of Univision speaks with democratic presidential candidate former Vice President Joe Biden during the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate former housing secretary Julian Castro interacts with the audience after the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidates former Vice President Joe Biden and Sen. Kamala Harris (D-CA) speak after the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidates South Bend, Indiana Mayor Pete Buttigieg, former Vice President Joe Biden, Sen. Kamala Harris (D-CA), Sen. Bernie Sanders (I-VT), former tech executive Andrew Yang, and Sen. Elizabeth Warren (D-MA) interact after the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate Sen. Elizabeth Warren (D-MA) looks on as Sen. Kamala Harris (D-CA) speaks during the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
HOUSTON, TEXAS - SEPTEMBER 12: Democratic presidential candidate Sen. Amy Klobuchar (D-MN) speaks during the Democratic Presidential Debate at Texas Southern University's Health and PE Center on September 12, 2019 in Houston, Texas. Ten Democratic presidential hopefuls were chosen from the larger field of candidates to participate in the debate hosted by ABC News in partnership with Univision. (Photo by Win McNamee/Getty Images)
ABC NEWS - 9/12/19 - Chief Anchor George Stephanopoulos, "World News Tonight" Anchor and Managing Editor David Muir, ABC News Correspondent Linsey Davis and Univision Anchor Jorge Ramos moderate the Democratic debate from Texas Southern University's Health & PE Center in Houston, TX on Thursday, September 12 on ABC and Univision (8-11 ET). (Heidi Gutman/Walt Disney Television via Getty Images) BERNIE SANDERS, JOE BIDEN, ELIZABETH WARREN
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