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Sen. Elizabeth Warren told Sen. Bernie Sanders, her fellow presidential candidate, after the recent Democratic debate that "I think you called me a liar on national TV," according to audio broadcast by CNN on Wednesday night.

The moment occurred following reports that Sanders, I-Vt., had previously told Warren, D-Mass., that he didn't think a woman could win a presidential election. Warren said it happened, and Sanders denied making the remark, including on the debate stage.

Warren told Sanders, "I think you called me a liar on national TV," and Sanders responded, "What?" according to the audio played by CNN. Warren repeated that he'd called her a liar.

"Let's not do it right now," Sanders replied. "You want to have that discussion, we'll have that discussion," according to the audio.

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Warren says, "Any time," and Sanders says: "You called me a liar. You told me — all right, let's not do it now."

During the debate, Sanders denied having told Warren at a private meeting in 2018 that a woman couldn't win.

"Anybody knows me knows that it's incomprehensible that I would think that a woman could not be president of the United States," Sanders said.

Sanders was asked: "You're saying that you never told Senator Warren that a woman could not win the election?" Sanders replied: "That is correct."

Warren was then asked, "What did you think when Senator Sanders told you a woman could not win the election?"

"I disagreed," Warren replied. Then she said, "Bernie is my friend, and I am not here to try to fight with Bernie.

"But look, this question about whether or not a woman can be president has been raised, and it's time for us to attack it head on," she said.

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The moment was one of the more talked-about exchanges from Tuesday night's debate, which was co-hosted by CNN and the Des Moines Register.