The survey illustrates some of the difficulty congressional Republicans have had gaining political traction with their investigation. Last week saw testimony from State Department officials on the ground in Libya and the revelation that Foggy Bottom was heavily involved in editing the talking points eventually presented by the Central Intelligence Agency to lawmakers and administration officials.

But despite the new revelations, voters remain evenly split on who they trust. While four in 10 say the Obama administration had been dishonest in providing information about the attack, 37 percent say the president has been honest. Meanwhile, 36 percent say congressional Republicans have gone too far in the hearings, marginally higher than the 34 percent who say they've handled them appropriately.

Unsurprisingly, seven in 10 Republicans say Obama has been dishonest while 62 percent of Democrats believe the White House has told the truth. Independents are more likely to believe the president had been dishonest by a 48-30 percent margin.

Earlier Monday, Obama accused Republicans of perpetuating a "sideshow" with their remarks surrounding the Benghazi terror attacks.

"The whole thing defies logic," Obama said at a press conference with British Prime Minister David Caemron. "And the fact that this keeps on getting churned out, frankly, has a lot to do with political motivations….  They’ve used it for fundraising."

On Sunday, Rep. Darrell Issa (R-Calif.), chairman of the House Oversight and Government Reform Committee, said he would press for sworn depositions from retired Ambassador Thomas Pickering and retired Adm. Mike Mullen — the two men who penned the initial report on the government's handling of the Benghazi attack.