Sanders grows lead in new Hill/HarrisX poll

Sen. Bernie SandersBernie SandersSanders won't vote for bipartisan infrastructure deal Bipartisan infrastructure deal takes fire from left and right Politics of discontent: Who will move to the center and win back Americans' trust? MORE (I-Vt.) is seeing increasing support in the latest Hill/HarrisX national poll following his big win in the Nevada caucuses last weekend.

Sanders received 28 percent support among registered Democratic and Democratic-leaning independent voters in the Feb. 23-24 survey, a 6 percentage point jump from last week's numbers.

Former New York City Mayor Michael BloombergMichael BloombergWhat the Democrats should be doing to reach true bipartisanship 5 former Treasury secretaries back Biden's plan to increase tax enforcement on wealthy On The Money: Biden ends infrastructure talks with Capito, pivots to bipartisan group | Some US billionaires had years where they paid no taxes: report | IRS to investigate leak MORE overtook former Vice President Joe BidenJoe BidenFormer Rep. Rohrabacher says he took part in Jan. 6 march to Capitol but did not storm building Saudis picked up drugs in Cairo used to kill Khashoggi: report Biden looking to build momentum for Putin meeting MORE for second place. Bloomberg ticked up 1 point from 18 percent to 19 percent, while Biden fell to 17 percent support from 19 percent.

Former South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegButtigieg: 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 Biden ends infrastructure talks with key Republican MORE (D) ticked up 2 points to 12 percent in the poll, while Sen. Elizabeth WarrenElizabeth WarrenAdams, Garcia lead in NYC mayor's race: poll Exclusive: Democrat exploring 'patriot tax' on multimillionaires' wealth McConnell seeks to divide and conquer Democrats MORE (D-Ma.) dipped 4 points to 8 percent.

Sen. Amy KlobucharAmy KlobucharDemocrats mull overhaul of sweeping election bill House unveils antitrust package to rein in tech giants Democrats reintroduce bill to create 'millionaires surtax' MORE (D-Mnn.) and venture capitalist Tom SteyerTom SteyerTop 12 political donors accounted for almost 1 of every 13 dollars raised since 2009: study California Democrats weigh their recall options Why we should be leery of companies entering political fray MORE received 3 percent support each in the survey while Rep. Tulsi GabbardTulsi GabbardTulsi Gabbard on Chicago mayor's decision to limit media interviews to people of color: 'Anti-white racism' Fox News says network and anchor Leland Vittert have 'parted ways' New co-chairs named for congressional caucus for millennials MORE (D-Hawaii) received 2 percent support. 

Eight percent of voters were still unsure.

Seven Democratic presidential candidates are gathering in Charleston, S.C., on Tuesday night for the tenth Democratic debate, just a few days before the state's primary election. 

Biden has held a lead in polls in South Carolina, but Sanders has closed the gap, according to the latest South Carolina polls.

Though Sanders seems to be riding on post-Nevada momentum and a promising outlook heading into Super Tuesday, some experts believe the contest isn't yet a done deal.

"While Bernie is beginning to put together an impressively diverse coalition that includes a plurality of black and brown voters, his inability to attract the same level of support from white voters, older voters, and from Democrats more broadly, is the reason he seems to plateau around 30 percent in every poll," Terrance Woodbury, Democratic pollster and Partner of Hit Strategies, told The Hill.

"With multiple well-funded candidates with the resources to remain in the race for the long haul, this is the formula for a brokered convention where no one emerges with a clear majority of delegates," he added.

The Hill-HarrisX poll was conducted online among 470 registered Democratic and Democratic-leaning independent voters between Feb. 23 and 24. It has a margin of error of plus or minus 4.5 percentage points.  


—Gabriela Schulte