Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden 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.”

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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 Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence 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.