“You believe that the former mayor of New York said that to a pregnant employee,” Matthews asked Warren in a post-debate interview, to which Warren responded, “Why shouldn’t I believe her?”

From there, Matthews continued to question Warren’s assertion, asking, “You believe he’s that kind of person who did that?” Later, Matthews asked, “You believe he’s lying? … You believe he’s lying? And why would he lie? Just to protect himself?” Finally, he asked one more time, “You’re confident of your accusation?”

Warren didn’t back off during this tense exchange, saying “I believe the woman” and shooting back to Matthews, “Why would she lie? That’s the question, Chris.”