Derry, New Hampshire (CNN) Sen. Elizabeth Warren apologized Thursday evening to six women of color who left her Nevada presidential campaign because of what they called a toxic work environment.

"I believe these women completely and without reservation and I apologize that they have had a bad experience on this campaign," the Massachusetts Democrat told reporters after a town hall on Thursday.

She continued: "I also understand the long legacy of racism in this country and what it means and how it creates power dynamics and inequities that are toxic and dangerous. And that's why it's so important that we be constantly vigilant and determined to do better. I take personal responsibility for this and I'm working with my team to address these concerns."

Warren's comments come after a Politico report Thursday said six staffers had left Warren's Nevada campaign because of what is described in the story as a culture that "tokenized" minority voices.

"During the time I was employed with Nevada for Warren, there was definitely something wrong with the culture," field organizer Megan Lewis, who joined the campaign in May and departed in December, told Politico. "I filed a complaint with HR, but the follow-up I received left me feeling as though I needed to make myself smaller or change who I was to fit into the office culture."

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