A majority of Americans believe Hillary ClintonHillary Rodham ClintonPressure grows on Perez to enter DNC race Biden: Republicans 'probably would have eaten me alive' if I ran Overnight Healthcare: Burwell huddles with Dems on fighting ObamaCare repeal MORE lied about having sensitive national intelligence on her private email server, a new poll finds.

Fifty-eight percent of voters believe Clinton “knowingly lied” last March by claiming her personal email server lacked any classified information, according to a Fox News poll released Friday.

Another 33 percent believe there is “another explanation” for having “top-secret” information on the device.

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Most also think the Democratic presidential candidate endangered the U.S. by using a private server while at the State Department.

The poll found that 54 percent feel Clinton’s use of the device jeopardized national security, while 37 percent don't think her decision threatened America’s safety.

The new Fox News poll finds that perceptions of Clinton’s trustworthiness vary wildly based on political affiliation.

Some 87 percent of Republicans say Clinton lied, it said, and 81 percent think her use of the device was a security risk.

Among independents, 67 percent believe Clinton acted dishonestly, and over half — 54 percent — believe she endangered national security.

Democrats were most forgiving, with 27 percent thinking Clinton lied and 29 percent seeing her server use as a national security danger.

Concerns about Clinton's transparency and the email controversy have been a lingering problem for her campaign.

Clinton announced on late Tuesday that she was turning over her personal email server and its backup USB flash drive to Justice Department investigators.

Clinton's campaign though has denied any wrongdoing and dismissed the controversy as "nonsense."

Still, voter concerns over her use of the device are threatening her status as the favorite for the Democratic presidential nomination in 2016. Clinton’s lead for that honor is eroding in multiple national polls as Sen. Bernie SandersBernie SandersPressure grows on Perez to enter DNC race Senate sends annual defense bill to Obama's desk AFL-CIO endorses Ellison for DNC chair MORE (I-Vt.), her main competition, gains support.

Fox News’s latest sampling questioned 1,008 registered voters between Aug. 11-13 with a 3 percent margin of error.

It also questioned 625 register voters on those dates over her server’s possible risk with a 4 percent margin of error.

Fox News’s fresh survey was additionally conducted under the joint direction of Anderson Robbins Research (D) and Shaw & Company Research (R).