Sen. Kamala Harris revealed to MSNBC’s Kasie Hunt Sunday that her now-viral moment confronting 2020 front-runner Joe Biden during the first Democratic presidential debate last week was planned.

During Thursday night’s debate, Harris attacked Biden for comments he made the week before about two segregationist senators that he used as an example of members of Congress that he worked alongside despite not agreeing with them on policies. She then pivoted to shame the former vice president for his opposition to busing decades ago, explaining that she was in “the second class to integrate her public schools,” and that “she was bused to school every day.”