Hillary ClintonHillary Diane Rodham ClintonGeorge HW Bush wears 'book socks' to Barbara Bush's funeral to honor her passion for literacy Obamas, Clintons to attend funeral of Barbara Bush Hillary Clinton to fundraise in DC for public charter high school MORE says she's always tried to be honest and doesn't believe she ever told a lie to the American people.

“Well, I have to tell you, I have tried in every way I know how, literally from my years as a young lawyer all the way through my time as secretary of State, to level with the American people,” the presidential contender told CBS in an interview Thursday, when asked if she was always truthful with the public.

“I’ve always tried to. Always. Always,” she added.

When pressed further, Clinton said she doesn't believe she has ever lied.

“Well, but, you know, you’re asking me to say, ‘Have I ever?’ I don’t believe I ever have,” Clinton said. “I don’t believe I ever have. I don’t believe I ever will.”

The Democratic front-runner has been dogged by questions over her honesty and trustworthiness, fueled in part by the controversy over her use of a private email server while secretary in State.

Polls show voters see her Democratic primary rival Bernie SandersBernard (Bernie) SandersHannity snaps back at 'Crybaby' Todd: 'Only conservatives have to disclose relationships?' Chuck Todd lashes out at Fox, defends wife in radio interview Trump pressed Sessions to fire FBI agents who sent anti-Trump texts: report MORE as more trustworthy.

Republicans said Clinton's answer exemplifies why Americans don't trust her.

“The fact Hillary Clinton felt the need to waffle on a question about whether she is a liar is precisely why two-thirds of the American people think she’s dishonest and untrustworthy," Republican National Committee spokesman Michael Short said in a statement.

The CBS interview comes as Sanders looks to cut into Clinton's lead as Democratic voters head to the polls in Nevada on Saturday and South Carolina next weekend. Sanders has been bolstered by his big win in New Hampshire, and close call in Iowa.

In the interview, Clinton said Sanders is making promises to the American people that he cannot deliver.

“Here’s the problem with Senator Sanders’s plan: His numbers don’t add up,” she said. “There is no way for him to fulfill the promises he’s making without raising taxes on the middle class.” 

The former first aldy said she has tried not to “overpromise” on the campaign trail.

“People feel here government’s not working for them, the economy’s not working for them, the political system’s not working,” she said.

“But I see in the eyes of the people I’m meeting with, ‘OK, tell me something I can believe. Don’t overpromise. Tell me what I can believe you will do for me and my family.’ And that’s what I’ve tried to do,” she added.