Chicago (CNN) Hillary Clinton, facing direct criticism about her trustworthiness from rival Donald Trump, admitted Monday she needs to do more to earn voters' trust.

"I personally know I have work to do on this front," Clinton said at a Rainbow Push Collation luncheon, from prepared remarks. Clinton, the presumptive Democratic nominee, spoke at length about a deterioration of trust throughout the country and institutions, but argued that her own trustworthiness issues are a byproduct of politicians looking to score political points and "25 years' worth of wild accusations."

"A lot of people tell pollsters they don't trust me. Now I don't like hearing that and I have thought a lot about what is behind it," she said.

Clinton has long struggled to explain why voters don't trust her, but Monday marked the most thorough and comprehensive attempt she has made to address the issue during this campaign.

"It certainly is true, I have made mistakes. I don't know anyone who hasn't," she said, while still maintaining outside factors -- such as partisan attacks -- are also to blame for the perception.

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