Poll: Six in 10 voters approve of Hillary Clinton's endorsement of Joe Biden

According to a new Hill-HarrisX poll, 60 percent of voters approve of Hillary ClintonHillary Diane Rodham ClintonCarville repeats prediction that Trump will drop out of race What's behind Trump's slump? Americans are exhausted, for one thing Trump campaign reserves air time in New Mexico MORE's endorsement of presumptive Democratic nominee Joe BidenJoe BidenThe Hill's Campaign Report: Biden chips away at Trump's fundraising advantage The Memo: Trump grows weak as clock ticks down Nina Turner addresses Biden's search for a running mate MORE, while 40 percent disapprove.

Approval among Democrats was high in the May 6 survey, at 88 percent.

Support among independents was split with 52 percent approval, and just 37 percent of Republicans approved.

When comparing endorsement approval to former White House rival Sen. Bernie SandersBernie SandersOVERNIGHT ENERGY: Watchdog accuses Commerce of holding up 'Sharpiegate' report | Climate change erases millennia of cooling: study | Senate nixes proposal limiting Energy Department's control on nuclear agency budget Sanders calls for social distancing, masks and disinfection on planes as flights operate at full capacity Nina Turner addresses Biden's search for a running mate MORE (I-Vt.), the poll found that party approval remains about the same at 87 percent, but support among independent voters and Republicans was slightly higher.

Fifty-nine percent of independent voters supported Sanders's endorsement of Biden in a April 19-20 survey, while 42 percent of Republican voters agreed.

"The public is somewhat split on Hillary Clinton's decision to endorse Joe Biden for president, with slightly more people approv[ing], 60 percent, than disapproving, 40 percent," Chris Jackson, Vice President of Ipsos, told Hill.TV.

"Independents are split, 52-48, which suggests this is not something that broadens the Democratic coalition — this is very much something that's going to be really about bringing the existing Democratic Party together," he added.

The Hill-HarrisX poll was conducted online among 957 registered voters on May 6. It has a margin of error of plus or minus 3.17 percentage points. 

— Gabriela Schulte