Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' 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 Bloomberg Michael BloombergTop Democratic super PAC launches Florida ad blitz after Bloomberg donation The Hill's 12:30 Report - Presented by Facebook - Latest with the COVID-19 relief bill negotiations The Memo: 2020 is all about winning Florida MORE overtook former Vice President Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral 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 Buttigieg Pete ButtigiegBipartisan praise pours in after Ginsburg's death Bogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq MORE (D) ticked up 2 points to 12 percent in the poll, while Sen. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Ma.) dipped 4 points to 8 percent.

Sen. Amy Klobuchar Amy KlobucharThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill EPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates MORE (D-Mnn.) and venture capitalist Tom Steyer Tom SteyerTV ads favored Biden 2-1 in past month Inslee calls Biden climate plan 'perfect for the moment' OVERNIGHT ENERGY: Trump administration finalizes plan to open up Alaska wildlife refuge to drilling | California finalizes fuel efficiency deal with five automakers, undercutting Trump | Democrats use vulnerable GOP senators to get rare win on environment MORE received 3 percent support each in the survey while Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention 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