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 WarrenOn The Money: Trump officials struggle to get relief loans out the door | Dow soars more than 1600 points | Kudlow says officials 'looking at' offering coronavirus bonds Overnight Energy: Trump floats oil tariffs amid Russia-Saudi dispute | Warren knocks EPA over 'highly dangerous' enforcement rollback | 2019 sees big increase in methane levels in air Ex-CFPB director urges agency to 'act immediately' to help consumers during pandemic MORE (D-Mass.) leading the early voting state and former Vice President Joe BidenJoe BidenOvernight Health Care: US hits 10,000 coronavirus deaths | Trump touts 'friendly' talk with Biden on response | Trump dismisses report on hospital shortages as 'just wrong' | Cuomo sees possible signs of curve flattening in NY We need to be 'One America,' the polling says — and the politicians should listen 16 things to know today about coronavirus 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 SandersWisconsin Supreme Court blocks governor's effort to delay election The Hill's Campaign Report: Biden, Trump discuss coronavirus response; Wisconsin postpones elections Wisconsin governor postpones Tuesday's election over coronavirus MORE (I-Vt.) with 19 percent, South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegButtigieg launches new PAC to aid down-ballot candidates HuffPost political reporter on why Bernie fell way behind Biden Economists fear slow pace of testing will prolong recession 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 KlobucharBiden hosts potential VP pick Gretchen Whitmer on podcast Why Gretchen Whitmer's stock is rising with Team Biden Biden says his administration could help grow 'bench' for Democrats MORE (D-Minn.) with 4 percent, Sen. Kamala HarrisKamala Devi HarrisThe Hill's Coronavirus Report: Dybul interview; Boris Johnson update Biden hosts potential VP pick Gretchen Whitmer on podcast Why Gretchen Whitmer's stock is rising with Team Biden MORE (D-Calif.) with 3 percent and entrepreneur Andrew YangAndrew YangCampaigns face attack ad dilemma amid coronavirus crisis Andrew Yang: Calling coronavirus 'China virus' only used to incite 'hostility' Andrew Yang to launch issues-based podcast 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.