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Warren holds slim lead over Sanders in Iowa, Biden in fourth: poll

A new poll shows a tight race in Iowa, with Sen. Elizabeth WarrenElizabeth WarrenThe Hill's 12:30 Report - Presented by Facebook - Senate to vote on elections bill Supreme Court battle could wreak havoc with Biden's 2020 agenda Progressives fear nightmare scenario over voting rights assault MORE (D-Mass.) leading the early voting state and former Vice President Joe BidenJoe BidenBaltimore police chief calls for more 'boots on the ground' to handle crime wave Biden to deliver remarks at Sen. John Warner's funeral Garland dismisses broad review of politicization of DOJ under Trump MORE slipping to fourth.

The New York Times–Siena College poll released Friday showed Warren with 22 percent support from likely Democratic caucusgoers, Sen. Bernie SandersBernie SandersSchumer vows next steps after 'ridiculous,' 'awful' GOP election bill filibuster Schumer, Pelosi meeting with White House on infrastructure Feehery: 8 reasons why Biden should take the bipartisan infrastructure deal MORE (I-Vt.) with 19 percent, South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegHigh-speed rail getting last minute push in Congress Buttigieg: Bipartisan deal on infrastructure 'strongly preferred' OVERNIGHT ENERGY: Biden ends infrastructure talks with key Republican | Colonial Pipeline CEO grilled over ransomware attack | Texas gov signs bills to improve power grid after winter storm MORE (D) with 18 percent and Biden with 17 percent. All four fall close to the poll's margin of error of plus or minus 4.7 percentage points.

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No other candidate was near the top four, who were distantly trailed by Sen. Amy KlobucharAmy KlobucharSchumer vows next steps after 'ridiculous,' 'awful' GOP election bill filibuster Senate GOP blocks voting rights bill The antitrust package is a Trojan horse conservatives must reject MORE (D-Minn.) with 4 percent, Sen. Kamala HarrisKamala HarrisA call to action for strategic space competition with China Old-guard Democrats must end the filibuster and symbolic progress Biden job approval at 43 percent in Iowa: poll MORE (D-Calif.) with 3 percent and entrepreneur Andrew YangAndrew YangYang concedes in NYC mayor's race Early results show Adams leading NYC mayoral primary as counting continues Ocasio-Cortez says she ranked Wiley first, Stringer second in NYC mayoral vote MORE with 3 percent.

The survey is among a series of recent polls showing Warren leading the field in Iowa. A RealClearPolitics average of polls showed the senator ahead of the former vice president by an average of 5 percentage points Friday morning. 

Buttigieg's rise in the poll puts him much closer to the front-runners in Iowa than in national polls. He is in fourth place in the nationwide RealClearPolitics average of polls, trailing Sanders by 9 points.

Biden said in an MSNBC interview this week that he plans to do “very well” in Iowa and New Hampshire amid questions as to whether he can win the early caucus and primary states. 

“I plan on doing very well in both those," he said Tuesday. "I’ve been ahead in Iowa. I’ve been ahead in South Carolina. I’m ahead in all the national polls with the occasional one that pops up that’s different."

Researchers surveyed 439 likely Iowa Democratic caucusgoers from Oct. 25 to 30.

The Iowa caucuses are just more than three months away, taking place on Feb. 3.

More than a dozen people are vying for the 2020 Democratic presidential nomination.

Updated at 9:08 a.m.