Former Vice President Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE and Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) are tied atop the field of Democratic presidential hopefuls in Iowa, according to a new poll, suggesting that the crucial first-in-the-nation caucus state is still in play for both men.

An Iowa Starting Line/Change Research poll released on Monday shows Biden and Sanders each receiving 24 percent support among likely Democratic caucusgoers in Iowa.

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They’re trailed by South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice Hillicon Valley: FBI, DHS warn that foreign hackers will likely spread disinformation around election results | Social media platforms put muscle into National Voter Registration Day | Trump to meet with Republican state officials on tech liability shield MORE, who received 14 percent of the vote, Sen. Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.), who came in fourth with 12 percent, and Sen. Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (D-Calif.) who also had double figures at 10 percent support.

The tie between Biden and Sanders in the Hawkeye State differs from most recent national polling results that have shown the former vice president trouncing his competition, often by double digits.

A Fox News survey released last week, for instance, showed Biden with an 18-point lead over Sanders, the poll’s second-place finisher. And a recent left-leaning poll of South Carolina voters, an important Democratic primary state, showed Biden leading Sanders by more than 30 points.

The Iowa poll, however, shows a much closer race between Biden and Sanders for the all-important opening caucus.

The former vice president has double the support of Sanders among voters 65 and older — 30 percent to 15 percent, according to the Iowa Starting Line/Change Research poll. But Sanders carries a significant lead over Biden among voters between the ages of 18 and 31 — 41 percent compared to Biden’s 9 percent.

Meanwhile, Biden outperforms Sanders among female voters, according to the poll, taking 26 percent support compared to Sanders’s 19 percent. Sanders, however, has more backing from male voters, 29 percent of whom say they plan to support the Vermont senator in 2020. Biden has 21 percent support among men.

To be sure, the Iowa caucuses are still nine months away, and caucusgoers in the state are often wary to commit too early to any particular candidate.

Still, Sanders performed well there in 2016, coming in a close second to Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE in the caucuses that year. The Iowa Starting Line/Change Research poll released Monday found that 45 percent of those who caucused for Sanders in 2016 still say that the Vermont senator is their first choice in 2020.

The poll surveyed 615 likely Democratic caucusgoers in Iowa from May 15-19. It was a margin of error of 3.9 percentage points.