New details: What Warren and Bernie said to each other after the debate

People familiar with the exchange said Ms. Warren walked over and told Mr. Sanders that she was concerned that, during the debate, he had mischaracterized a conversation they had in 2018 about whether a woman could win the presidency. She has accused him of saying that a woman could not; he has denied that remark.

Appearing frustrated, Mr. Sanders asked to discuss the matter at a different time, said the people, who insisted on anonymity to discuss a sensitive, private conversation. He pointed his finger toward her, then back at himself, before turning and walking away.