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 surged past Sen. Elizabeth Warren Elizabeth WarrenGOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt MORE (D-Mass.) in the latest nationwide Hill-HarrisX poll, putting him in third place in the field of Democratic presidential candidates.

The survey, released Thursday, showed Bloomberg’s support ticking up 4 percentage points to 11 percent from from a Jan. 13-14 poll. Warren dropped 2 points, to 9 percent.

Other candidates registering in the single digits included 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, at 5 percent, and businessman Andrew Yang Andrew YangDoctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls Buttigieg launches his own podcast MORE and billionaire 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, who each received 4 percent. The rest of the White House hopefuls polled at 2 percent or less.

Warren has struggled to rebound nationally after peaking at 19 percent support in October.

But Warren isn’t the only top-tier candidate to slide in the polls ahead of Monday's Iowa caucuses. Progressive rival 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.) dropped 2 points, to 17 percent.

Former Vice President Joe Biden Joe BidenBiden leads Trump by 36 points nationally among Latinos: poll GOP set to release controversial Biden report Can Donald Trump maintain new momentum until this November? MORE, meanwhile, maintained a double-digit lead over the field, with 29 percent support.

Both Biden and Sanders are locked in a tight race in Iowa. An Emerson poll released Sunday found the Vermont senator in the top spot in the Hawkeye State with 30 percent support, followed by Biden's 21 percent. A New York Times/Siena College poll released the day before also showed Sanders in the lead with 25 percent support to Biden’s 17 percent.

The Hill-HarrisX survey was conducted among 878 respondents from Jan. 20-22. It has a margin of error of plus or minus 3.3 percentage points.

—Tess Bonn