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Warren gains on Sanders, Biden in new national poll

Sen. Elizabeth WarrenElizabeth WarrenWarren calls for US to support ceasefire between Israel and Hamas Sanders: Netanyahu has cultivated 'racist nationalism' Tensions mount among Democrats over US-Israel policy MORE (D-Mass.) is gaining ground on top-tier White House contenders Sen. Bernie SandersBernie SandersWarren calls for US to support ceasefire between Israel and Hamas Prominent Muslim group to boycott White House Eid celebration over stance on Israel-Gaza violence Biden speaks with Israel's Netanyahu again amid ramped-up strikes in Gaza MORE (I-Vt.) and former Vice President Joe BidenJoe BidenWarren calls for US to support ceasefire between Israel and Hamas UN secretary general 'deeply disturbed' by Israeli strike on high rise that housed media outlets Nation's largest nurses union condemns new CDC guidance on masks MORE, according to a new Hill-HarrisX survey.

The survey released on Tuesday still shows Warren in third place, but she has ticked up four points over the past two weeks to 14 percent support among likely Democratic and independent voters.

Biden, meanwhile, held onto the top spot with 30 percent, but is down 1 percentage point. Sanders placed second at 17 percent and is up 1 point from the Aug. 9-10 poll.

Sen. Kamala HarrisKamala HarrisHere's why Joe Biden polls well, but Kamala Harris does not Immigration experts say GOP senators questioned DHS secretary with misleading chart Carper urges Biden to nominate ambassadors amid influx at border MORE (D-Calif.) tied with South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegInfrastructure deal imperiled by differences on financing Biden says he and GOP both 'sincere about' seeking infrastructure compromise The Hill's 12:30 Report - Presented by Facebook - Colonial pays hackers as service is restored MORE for fourth place, with each receiving 4 percent support. 

Former Rep. Beto O’Rourke (D-Texas) rounded out the top five at 3 percent, a 1 point decrease compared to the previous poll.

Sen. Cory BookerCory BookerPolice reform talks hit familiar stumbling block Almost 20 advocacy groups team up to pressure Congress to pass health care bill for immigrants Biden adds pressure to congressional talks with self-imposed deadlines MORE (N.J.), tech entrepreneur Andrew YangAndrew YangYang: 'Defund the police is the wrong approach for New York City' HuffPost's Daniel Marans discusses fallout from Yang's comments on Israel Yang: Those who thought tweet in support of Israel was 'overly simplistic' are correct MORE and Montana Gov. Steve BullockSteve BullockDemocratic Kansas City, Mo., mayor eyes Senate run Overnight Energy: Climate Summit Day 2 — Biden says US will work with other countries on climate innovation Biden announces picks to lead oceans, lands agencies MORE (D) were the only other candidates that polled above 1 percent in the poll. 

The latest results come amid signs that Sanders and Warren are cutting into Biden's lead over the Democratic contenders for the White House, though the former vice president remains the front-runner.

The Hill-HarrisX poll surveyed 465 Democratic and independent registered voters between Aug. 23 and Aug. 24 with a margin of error of plus or minus 4.6 percentage points.

—Tess Bonn