A bare majority supports an additional congressional investigation into the events surrounding the 2012 terror attack in Benghazi, Libya, that killed a U.S. ambassador and three other Americans. 

A new Washington Post-ABC News poll found 51 percent of respondents support the creation of a new select committee to investigate, while 42 percent feel it has been adequately investigated. 

Seventy-two percent of Republicans support the new committee, and 52 percent of independents feel the same. Only 31 percent of Democrats support it, while 58 percent feel the attack has been investigated enough. 

The numbers are lower than a similar Fox News poll conducted last month after House Republicans voted to establish the select committee to investigate the incident on a largely party-line vote. 

The Fox News poll found 67 percent of registered voters approved of the creation of the special committee. 

Democrats have reluctantly appointed members to the committee, but have described it as a politically motivated attempt to damage Hillary ClintonHillary Diane Rodham ClintonSessions says FBI agent Peter Strzok no longer has his security clearance Melania Trump puzzles with 'I really don't care' jacket Grassley wants to subpoena Comey, Lynch after critical IG report MORE, who is seen as a likely presidential candidate in 2016. Democrats argue both chambers and the administration have already conducted multiple reviews. 

The latest poll found 50 percent of people disapprove of Clinton's handling of the incident, which took place while she led the State Department. Another 37 percent approve of her handling of the incident. 

The poll found 58 percent believe the Obama administration is trying to cover up the facts surrounding the attack. Another 32 percent said it has honestly disclosed what it knows. 

The formation of the committee came about after a previously undisclosed email came to light that prepped Susan Rice for a series of television interviews days after the attack. 

Republicans say the email from deputy national security adviser Ben Rhodes advising Rice to discuss Muslim protests over an anti-Islam film show the administration tried to downplay the terrorist nature of the attack ahead of the 2012 presidential election.

The poll surveyed 1,002 people from May 29 to June 1 and has a margin of error of plus or minus 3.5 percentage points.